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Finding the Fourth Proportional to 616,670.89, 851,012.13 and 344,753.89

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Solution

The fourth proportional to 616,670.89, 851,012.13 and 344,753.89 is: 475,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,670.89 : 851,012.13 = 344,753.89 : x
  2. Step 2: Convert to fraction form
    616,670.89/851,012.13 = 344,753.89/x
  3. Step 3: Cross multiply
    616,670.89x = 851,012.13 × 344,753.89
  4. Step 4: Simplify right side
    616,670.89x = 293,389,742,254.69
  5. Step 5: Solve for x
    x = 293,389,742,254.69/616,670.89
  6. Step 6: Final answer
    x = 475,763.89

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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.