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Finding the Fourth Proportional to 616,123.45, 850,219.86 and 344,137.15

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Solution

The fourth proportional to 616,123.45, 850,219.86 and 344,137.15 is: 474,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,123.45 : 850,219.86 = 344,137.15 : x
  2. Step 2: Convert to fraction form
    616,123.45/850,219.86 = 344,137.15/x
  3. Step 3: Cross multiply
    616,123.45x = 850,219.86 × 344,137.15
  4. Step 4: Simplify right side
    616,123.45x = 292,592,239,493.80
  5. Step 5: Solve for x
    x = 292,592,239,493.80/616,123.45
  6. Step 6: Final answer
    x = 474,892.23

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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.