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Finding the Fourth Proportional to 564,766.48, 779,372.13 and 306,637.75

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Solution

The fourth proportional to 564,766.48, 779,372.13 and 306,637.75 is: 423,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,766.48 : 779,372.13 = 306,637.75 : x
  2. Step 2: Convert to fraction form
    564,766.48/779,372.13 = 306,637.75/x
  3. Step 3: Cross multiply
    564,766.48x = 779,372.13 × 306,637.75
  4. Step 4: Simplify right side
    564,766.48x = 238,984,916,355.91
  5. Step 5: Solve for x
    x = 238,984,916,355.91/564,766.48
  6. Step 6: Final answer
    x = 423,157.05

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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.