Home / 788,816.32-1,088,566.56-431,120.32

Finding the Fourth Proportional to 788,816.32, 1,088,566.56 and 431,120.32

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Solution

The fourth proportional to 788,816.32, 1,088,566.56 and 431,120.32 is: 594,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,816.32 : 1,088,566.56 = 431,120.32 : x
  2. Step 2: Convert to fraction form
    788,816.32/1,088,566.56 = 431,120.32/x
  3. Step 3: Cross multiply
    788,816.32x = 1,088,566.56 × 431,120.32
  4. Step 4: Simplify right side
    788,816.32x = 469,303,163,688.50
  5. Step 5: Solve for x
    x = 469,303,163,688.50/788,816.32
  6. Step 6: Final answer
    x = 594,946.06

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Half scale
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Double scale
Find fourth proportional to 788,817.32, 1,088,567.94 and 431,121.32
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.