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Finding the Fourth Proportional to 487,504.85, 731,108.23 and 171,887.94

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Solution

The fourth proportional to 487,504.85, 731,108.23 and 171,887.94 is: 257,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,504.85 : 731,108.23 = 171,887.94 : x
  2. Step 2: Convert to fraction form
    487,504.85/731,108.23 = 171,887.94/x
  3. Step 3: Cross multiply
    487,504.85x = 731,108.23 × 171,887.94
  4. Step 4: Simplify right side
    487,504.85x = 125,668,687,142.03
  5. Step 5: Solve for x
    x = 125,668,687,142.03/487,504.85
  6. Step 6: Final answer
    x = 257,779.36

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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.