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Finding the Fourth Proportional to 709,540.56, 1,063,386.72 and 288,324

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Solution

The fourth proportional to 709,540.56, 1,063,386.72 and 288,324 is: 432,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,540.56 : 1,063,386.72 = 288,324 : x
  2. Step 2: Convert to fraction form
    709,540.56/1,063,386.72 = 288,324/x
  3. Step 3: Cross multiply
    709,540.56x = 1,063,386.72 × 288,324
  4. Step 4: Simplify right side
    709,540.56x = 306,599,912,657.28
  5. Step 5: Solve for x
    x = 306,599,912,657.28/709,540.56
  6. Step 6: Final answer
    x = 432,110.48

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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.