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Finding the Fourth Proportional to 564,549.25, 779,078.76 and 306,426.26

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Solution

The fourth proportional to 564,549.25, 779,078.76 and 306,426.26 is: 422,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,549.25 : 779,078.76 = 306,426.26 : x
  2. Step 2: Convert to fraction form
    564,549.25/779,078.76 = 306,426.26/x
  3. Step 3: Cross multiply
    564,549.25x = 779,078.76 × 306,426.26
  4. Step 4: Simplify right side
    564,549.25x = 238,730,187,088.52
  5. Step 5: Solve for x
    x = 238,730,187,088.52/564,549.25
  6. Step 6: Final answer
    x = 422,868.66

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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.