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Finding the Fourth Proportional to 564,792.27, 779,405.36 and 319,770.72

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Solution

The fourth proportional to 564,792.27, 779,405.36 and 319,770.72 is: 441,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,792.27 : 779,405.36 = 319,770.72 : x
  2. Step 2: Convert to fraction form
    564,792.27/779,405.36 = 319,770.72/x
  3. Step 3: Cross multiply
    564,792.27x = 779,405.36 × 319,770.72
  4. Step 4: Simplify right side
    564,792.27x = 249,231,008,252.09
  5. Step 5: Solve for x
    x = 249,231,008,252.09/564,792.27
  6. Step 6: Final answer
    x = 441,279.07

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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.