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Finding the Fourth Proportional to 611,752.72, 917,123.70 and 269,952.76

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Solution

The fourth proportional to 611,752.72, 917,123.70 and 269,952.76 is: 404,706.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,752.72 : 917,123.70 = 269,952.76 : x
  2. Step 2: Convert to fraction form
    611,752.72/917,123.70 = 269,952.76/x
  3. Step 3: Cross multiply
    611,752.72x = 917,123.70 × 269,952.76
  4. Step 4: Simplify right side
    611,752.72x = 247,580,074,076.41
  5. Step 5: Solve for x
    x = 247,580,074,076.41/611,752.72
  6. Step 6: Final answer
    x = 404,706.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.