Home / 487,284.72-731,031.41-145,754.97

Finding the Fourth Proportional to 487,284.72, 731,031.41 and 145,754.97

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Solution

The fourth proportional to 487,284.72, 731,031.41 and 145,754.97 is: 218,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,284.72 : 731,031.41 = 145,754.97 : x
  2. Step 2: Convert to fraction form
    487,284.72/731,031.41 = 145,754.97/x
  3. Step 3: Cross multiply
    487,284.72x = 731,031.41 × 145,754.97
  4. Step 4: Simplify right side
    487,284.72x = 106,551,456,849.68
  5. Step 5: Solve for x
    x = 106,551,456,849.68/487,284.72
  6. Step 6: Final answer
    x = 218,663.66

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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.