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Finding the Fourth Proportional to 710,339.11, 1,065,929.03 and 261,375.25

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Solution

The fourth proportional to 710,339.11, 1,065,929.03 and 261,375.25 is: 392,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,339.11 : 1,065,929.03 = 261,375.25 : x
  2. Step 2: Convert to fraction form
    710,339.11/1,065,929.03 = 261,375.25/x
  3. Step 3: Cross multiply
    710,339.11x = 1,065,929.03 × 261,375.25
  4. Step 4: Simplify right side
    710,339.11x = 278,607,460,061.99
  5. Step 5: Solve for x
    x = 278,607,460,061.99/710,339.11
  6. Step 6: Final answer
    x = 392,217.55

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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.