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Finding the Fourth Proportional to 724,801.61, 1,000,726.65 and 452,991.69

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Solution

The fourth proportional to 724,801.61, 1,000,726.65 and 452,991.69 is: 625,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,801.61 : 1,000,726.65 = 452,991.69 : x
  2. Step 2: Convert to fraction form
    724,801.61/1,000,726.65 = 452,991.69/x
  3. Step 3: Cross multiply
    724,801.61x = 1,000,726.65 × 452,991.69
  4. Step 4: Simplify right side
    724,801.61x = 453,320,856,411.54
  5. Step 5: Solve for x
    x = 453,320,856,411.54/724,801.61
  6. Step 6: Final answer
    x = 625,441.29

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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.