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Finding the Fourth Proportional to 616,000.96, 850,072.20 and 344,072.80

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Solution

The fourth proportional to 616,000.96, 850,072.20 and 344,072.80 is: 474,815.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,000.96 : 850,072.20 = 344,072.80 : x
  2. Step 2: Convert to fraction form
    616,000.96/850,072.20 = 344,072.80/x
  3. Step 3: Cross multiply
    616,000.96x = 850,072.20 × 344,072.80
  4. Step 4: Simplify right side
    616,000.96x = 292,486,717,805.80
  5. Step 5: Solve for x
    x = 292,486,717,805.80/616,000.96
  6. Step 6: Final answer
    x = 474,815.36

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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.