Home / 754,123.68-1,040,697.44-409,960.28

Finding the Fourth Proportional to 754,123.68, 1,040,697.44 and 409,960.28

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Solution

The fourth proportional to 754,123.68, 1,040,697.44 and 409,960.28 is: 565,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,123.68 : 1,040,697.44 = 409,960.28 : x
  2. Step 2: Convert to fraction form
    754,123.68/1,040,697.44 = 409,960.28/x
  3. Step 3: Cross multiply
    754,123.68x = 1,040,697.44 × 409,960.28
  4. Step 4: Simplify right side
    754,123.68x = 426,644,613,897.68
  5. Step 5: Solve for x
    x = 426,644,613,897.68/754,123.68
  6. Step 6: Final answer
    x = 565,748.86

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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.