Home / 731,976.42-1,009,897.20-409,635.30

Finding the Fourth Proportional to 731,976.42, 1,009,897.20 and 409,635.30

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Solution

The fourth proportional to 731,976.42, 1,009,897.20 and 409,635.30 is: 565,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,976.42 : 1,009,897.20 = 409,635.30 : x
  2. Step 2: Convert to fraction form
    731,976.42/1,009,897.20 = 409,635.30/x
  3. Step 3: Cross multiply
    731,976.42x = 1,009,897.20 × 409,635.30
  4. Step 4: Simplify right side
    731,976.42x = 413,689,542,491.16
  5. Step 5: Solve for x
    x = 413,689,542,491.16/731,976.42
  6. Step 6: Final answer
    x = 565,167.85

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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.