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Finding the Fourth Proportional to 408,743.40, 614,151.90 and 363,124.20

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Solution

The fourth proportional to 408,743.40, 614,151.90 and 363,124.20 is: 545,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,743.40 : 614,151.90 = 363,124.20 : x
  2. Step 2: Convert to fraction form
    408,743.40/614,151.90 = 363,124.20/x
  3. Step 3: Cross multiply
    408,743.40x = 614,151.90 × 363,124.20
  4. Step 4: Simplify right side
    408,743.40x = 223,013,417,365.98
  5. Step 5: Solve for x
    x = 223,013,417,365.98/408,743.40
  6. Step 6: Final answer
    x = 545,607.38

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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.