Home / 521,130.17-781,726.24-201,284.46

Finding the Fourth Proportional to 521,130.17, 781,726.24 and 201,284.46

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Solution

The fourth proportional to 521,130.17, 781,726.24 and 201,284.46 is: 301,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,130.17 : 781,726.24 = 201,284.46 : x
  2. Step 2: Convert to fraction form
    521,130.17/781,726.24 = 201,284.46/x
  3. Step 3: Cross multiply
    521,130.17x = 781,726.24 × 201,284.46
  4. Step 4: Simplify right side
    521,130.17x = 157,349,344,337.84
  5. Step 5: Solve for x
    x = 157,349,344,337.84/521,130.17
  6. Step 6: Final answer
    x = 301,938.66

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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.