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Finding the Fourth Proportional to 616,128.92, 850,227.46 and 344,142.68

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Solution

The fourth proportional to 616,128.92, 850,227.46 and 344,142.68 is: 474,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,128.92 : 850,227.46 = 344,142.68 : x
  2. Step 2: Convert to fraction form
    616,128.92/850,227.46 = 344,142.68/x
  3. Step 3: Cross multiply
    616,128.92x = 850,227.46 × 344,142.68
  4. Step 4: Simplify right side
    616,128.92x = 292,599,556,693.99
  5. Step 5: Solve for x
    x = 292,599,556,693.99/616,128.92
  6. Step 6: Final answer
    x = 474,899.89

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1.5x scale

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.