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Finding the Fourth Proportional to 615,930.60, 921,822.30 and 566,164.20

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Solution

The fourth proportional to 615,930.60, 921,822.30 and 566,164.20 is: 847,340.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,930.60 : 921,822.30 = 566,164.20 : x
  2. Step 2: Convert to fraction form
    615,930.60/921,822.30 = 566,164.20/x
  3. Step 3: Cross multiply
    615,930.60x = 921,822.30 × 566,164.20
  4. Step 4: Simplify right side
    615,930.60x = 521,902,785,021.66
  5. Step 5: Solve for x
    x = 521,902,785,021.66/615,930.60
  6. Step 6: Final answer
    x = 847,340.24

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1.5x scale

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.