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Finding the Fourth Proportional to 564,758.82, 779,372.63 and 310,115.48

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Solution

The fourth proportional to 564,758.82, 779,372.63 and 310,115.48 is: 427,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,758.82 : 779,372.63 = 310,115.48 : x
  2. Step 2: Convert to fraction form
    564,758.82/779,372.63 = 310,115.48/x
  3. Step 3: Cross multiply
    564,758.82x = 779,372.63 × 310,115.48
  4. Step 4: Simplify right side
    564,758.82x = 241,695,511,803.87
  5. Step 5: Solve for x
    x = 241,695,511,803.87/564,758.82
  6. Step 6: Final answer
    x = 427,962.35

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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.