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Finding the Fourth Proportional to 763,152.88, 1,052,550 and 676,031.20

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Solution

The fourth proportional to 763,152.88, 1,052,550 and 676,031.20 is: 932,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,152.88 : 1,052,550 = 676,031.20 : x
  2. Step 2: Convert to fraction form
    763,152.88/1,052,550 = 676,031.20/x
  3. Step 3: Cross multiply
    763,152.88x = 1,052,550 × 676,031.20
  4. Step 4: Simplify right side
    763,152.88x = 711,556,639,560
  5. Step 5: Solve for x
    x = 711,556,639,560/763,152.88
  6. Step 6: Final answer
    x = 932,390.69

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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.