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Finding the Fourth Proportional to 564,717.88, 779,321.82 and 310,066.84

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Solution

The fourth proportional to 564,717.88, 779,321.82 and 310,066.84 is: 427,898.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,717.88 : 779,321.82 = 310,066.84 : x
  2. Step 2: Convert to fraction form
    564,717.88/779,321.82 = 310,066.84/x
  3. Step 3: Cross multiply
    564,717.88x = 779,321.82 × 310,066.84
  4. Step 4: Simplify right side
    564,717.88x = 241,641,854,070.45
  5. Step 5: Solve for x
    x = 241,641,854,070.45/564,717.88
  6. Step 6: Final answer
    x = 427,898.36

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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.