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Finding the Fourth Proportional to 564,887.34, 779,560.56 and 310,255.02

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Solution

The fourth proportional to 564,887.34, 779,560.56 and 310,255.02 is: 428,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,887.34 : 779,560.56 = 310,255.02 : x
  2. Step 2: Convert to fraction form
    564,887.34/779,560.56 = 310,255.02/x
  3. Step 3: Cross multiply
    564,887.34x = 779,560.56 × 310,255.02
  4. Step 4: Simplify right side
    564,887.34x = 241,862,577,134.01
  5. Step 5: Solve for x
    x = 241,862,577,134.01/564,887.34
  6. Step 6: Final answer
    x = 428,160.73

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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.