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Finding the Fourth Proportional to 564,793.05, 779,423.35 and 306,669.85

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Solution

The fourth proportional to 564,793.05, 779,423.35 and 306,669.85 is: 423,209.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,793.05 : 779,423.35 = 306,669.85 : x
  2. Step 2: Convert to fraction form
    564,793.05/779,423.35 = 306,669.85/x
  3. Step 3: Cross multiply
    564,793.05x = 779,423.35 × 306,669.85
  4. Step 4: Simplify right side
    564,793.05x = 239,025,644,676.97
  5. Step 5: Solve for x
    x = 239,025,644,676.97/564,793.05
  6. Step 6: Final answer
    x = 423,209.25

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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.