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Finding the Fourth Proportional to 472,471.70, 708,707.55 and 417,359.30

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Solution

The fourth proportional to 472,471.70, 708,707.55 and 417,359.30 is: 626,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,471.70 : 708,707.55 = 417,359.30 : x
  2. Step 2: Convert to fraction form
    472,471.70/708,707.55 = 417,359.30/x
  3. Step 3: Cross multiply
    472,471.70x = 708,707.55 × 417,359.30
  4. Step 4: Simplify right side
    472,471.70x = 295,785,686,972.72
  5. Step 5: Solve for x
    x = 295,785,686,972.72/472,471.70
  6. Step 6: Final answer
    x = 626,038.95

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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.