Home / 788,810.32-1,088,558.28-431,114.32

Finding the Fourth Proportional to 788,810.32, 1,088,558.28 and 431,114.32

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Solution

The fourth proportional to 788,810.32, 1,088,558.28 and 431,114.32 is: 594,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,810.32 : 1,088,558.28 = 431,114.32 : x
  2. Step 2: Convert to fraction form
    788,810.32/1,088,558.28 = 431,114.32/x
  3. Step 3: Cross multiply
    788,810.32x = 1,088,558.28 × 431,114.32
  4. Step 4: Simplify right side
    788,810.32x = 469,293,062,662.57
  5. Step 5: Solve for x
    x = 469,293,062,662.57/788,810.32
  6. Step 6: Final answer
    x = 594,937.78

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Double scale
Find fourth proportional to 788,811.32, 1,088,559.66 and 431,115.32
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.