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Finding the Fourth Proportional to 768,397.32, 1,149,741.41 and 482,750.55

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Solution

The fourth proportional to 768,397.32, 1,149,741.41 and 482,750.55 is: 722,332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,397.32 : 1,149,741.41 = 482,750.55 : x
  2. Step 2: Convert to fraction form
    768,397.32/1,149,741.41 = 482,750.55/x
  3. Step 3: Cross multiply
    768,397.32x = 1,149,741.41 × 482,750.55
  4. Step 4: Simplify right side
    768,397.32x = 555,038,295,621.52
  5. Step 5: Solve for x
    x = 555,038,295,621.52/768,397.32
  6. Step 6: Final answer
    x = 722,332.42

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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.