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Finding the Fourth Proportional to 712,774.88, 1,069,321.88 and 239,447.33

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Solution

The fourth proportional to 712,774.88, 1,069,321.88 and 239,447.33 is: 359,224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,774.88 : 1,069,321.88 = 239,447.33 : x
  2. Step 2: Convert to fraction form
    712,774.88/1,069,321.88 = 239,447.33/x
  3. Step 3: Cross multiply
    712,774.88x = 1,069,321.88 × 239,447.33
  4. Step 4: Simplify right side
    712,774.88x = 256,046,262,532.73
  5. Step 5: Solve for x
    x = 256,046,262,532.73/712,774.88
  6. Step 6: Final answer
    x = 359,224.59

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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.