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Finding the Fourth Proportional to 788,820.32, 1,088,572.08 and 431,124.32

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Solution

The fourth proportional to 788,820.32, 1,088,572.08 and 431,124.32 is: 594,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,820.32 : 1,088,572.08 = 431,124.32 : x
  2. Step 2: Convert to fraction form
    788,820.32/1,088,572.08 = 431,124.32/x
  3. Step 3: Cross multiply
    788,820.32x = 1,088,572.08 × 431,124.32
  4. Step 4: Simplify right side
    788,820.32x = 469,309,897,760.99
  5. Step 5: Solve for x
    x = 469,309,897,760.99/788,820.32
  6. Step 6: Final answer
    x = 594,951.58

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Double scale
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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.