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Finding the Fourth Proportional to 399,250.82, 598,270.28 and 292,705.72

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Solution

The fourth proportional to 399,250.82, 598,270.28 and 292,705.72 is: 438,614.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,250.82 : 598,270.28 = 292,705.72 : x
  2. Step 2: Convert to fraction form
    399,250.82/598,270.28 = 292,705.72/x
  3. Step 3: Cross multiply
    399,250.82x = 598,270.28 × 292,705.72
  4. Step 4: Simplify right side
    399,250.82x = 175,117,130,102.80
  5. Step 5: Solve for x
    x = 175,117,130,102.80/399,250.82
  6. Step 6: Final answer
    x = 438,614.33

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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.