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Finding the Fourth Proportional to 545,801.70, 752,695.47 and 431,353.76

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Solution

The fourth proportional to 545,801.70, 752,695.47 and 431,353.76 is: 594,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,801.70 : 752,695.47 = 431,353.76 : x
  2. Step 2: Convert to fraction form
    545,801.70/752,695.47 = 431,353.76/x
  3. Step 3: Cross multiply
    545,801.70x = 752,695.47 × 431,353.76
  4. Step 4: Simplify right side
    545,801.70x = 324,678,023,706.86
  5. Step 5: Solve for x
    x = 324,678,023,706.86/545,801.70
  6. Step 6: Final answer
    x = 594,864.44

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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.