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Finding the Fourth Proportional to 564,591.72, 779,133.42 and 306,473.88

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Solution

The fourth proportional to 564,591.72, 779,133.42 and 306,473.88 is: 422,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,591.72 : 779,133.42 = 306,473.88 : x
  2. Step 2: Convert to fraction form
    564,591.72/779,133.42 = 306,473.88/x
  3. Step 3: Cross multiply
    564,591.72x = 779,133.42 × 306,473.88
  4. Step 4: Simplify right side
    564,591.72x = 238,784,042,265.07
  5. Step 5: Solve for x
    x = 238,784,042,265.07/564,591.72
  6. Step 6: Final answer
    x = 422,932.24

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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.