Home / 731,976.17-1,009,896.85-409,635.05

Finding the Fourth Proportional to 731,976.17, 1,009,896.85 and 409,635.05

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Solution

The fourth proportional to 731,976.17, 1,009,896.85 and 409,635.05 is: 565,167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,976.17 : 1,009,896.85 = 409,635.05 : x
  2. Step 2: Convert to fraction form
    731,976.17/1,009,896.85 = 409,635.05/x
  3. Step 3: Cross multiply
    731,976.17x = 1,009,896.85 × 409,635.05
  4. Step 4: Simplify right side
    731,976.17x = 413,689,146,644.59
  5. Step 5: Solve for x
    x = 413,689,146,644.59/731,976.17
  6. Step 6: Final answer
    x = 565,167.51

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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.