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Finding the Fourth Proportional to 661,548.35, 912,546.99 and 416,141.97

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Solution

The fourth proportional to 661,548.35, 912,546.99 and 416,141.97 is: 574,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,548.35 : 912,546.99 = 416,141.97 : x
  2. Step 2: Convert to fraction form
    661,548.35/912,546.99 = 416,141.97/x
  3. Step 3: Cross multiply
    661,548.35x = 912,546.99 × 416,141.97
  4. Step 4: Simplify right side
    661,548.35x = 379,749,102,136.17
  5. Step 5: Solve for x
    x = 379,749,102,136.17/661,548.35
  6. Step 6: Final answer
    x = 574,030.76

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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.