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Finding the Fourth Proportional to 472,264.80, 708,397.20 and 259,688.40

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Solution

The fourth proportional to 472,264.80, 708,397.20 and 259,688.40 is: 389,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,264.80 : 708,397.20 = 259,688.40 : x
  2. Step 2: Convert to fraction form
    472,264.80/708,397.20 = 259,688.40/x
  3. Step 3: Cross multiply
    472,264.80x = 708,397.20 × 259,688.40
  4. Step 4: Simplify right side
    472,264.80x = 183,962,535,432.48
  5. Step 5: Solve for x
    x = 183,962,535,432.48/472,264.80
  6. Step 6: Final answer
    x = 389,532.60

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Similar ratio
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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.