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Finding the Fourth Proportional to 655,951.20, 983,926.80 and 432,002.40

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Solution

The fourth proportional to 655,951.20, 983,926.80 and 432,002.40 is: 648,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,951.20 : 983,926.80 = 432,002.40 : x
  2. Step 2: Convert to fraction form
    655,951.20/983,926.80 = 432,002.40/x
  3. Step 3: Cross multiply
    655,951.20x = 983,926.80 × 432,002.40
  4. Step 4: Simplify right side
    655,951.20x = 425,058,739,024.32
  5. Step 5: Solve for x
    x = 425,058,739,024.32/655,951.20
  6. Step 6: Final answer
    x = 648,003.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.