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Finding the Fourth Proportional to 660,732.49, 991,087.04 and 250,480.76

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Solution

The fourth proportional to 660,732.49, 991,087.04 and 250,480.76 is: 375,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,732.49 : 991,087.04 = 250,480.76 : x
  2. Step 2: Convert to fraction form
    660,732.49/991,087.04 = 250,480.76/x
  3. Step 3: Cross multiply
    660,732.49x = 991,087.04 × 250,480.76
  4. Step 4: Simplify right side
    660,732.49x = 248,248,230,676.12
  5. Step 5: Solve for x
    x = 248,248,230,676.12/660,732.49
  6. Step 6: Final answer
    x = 375,716.70

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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.