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Finding the Fourth Proportional to 564,569.81, 779,103.02 and 306,451.88

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Solution

The fourth proportional to 564,569.81, 779,103.02 and 306,451.88 is: 422,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,569.81 : 779,103.02 = 306,451.88 : x
  2. Step 2: Convert to fraction form
    564,569.81/779,103.02 = 306,451.88/x
  3. Step 3: Cross multiply
    564,569.81x = 779,103.02 × 306,451.88
  4. Step 4: Simplify right side
    564,569.81x = 238,757,583,660.42
  5. Step 5: Solve for x
    x = 238,757,583,660.42/564,569.81
  6. Step 6: Final answer
    x = 422,901.79

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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.