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Finding the Fourth Proportional to 549,148.97, 824,305.73 and 486,376.61

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Solution

The fourth proportional to 549,148.97, 824,305.73 and 486,376.61 is: 730,080.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,148.97 : 824,305.73 = 486,376.61 : x
  2. Step 2: Convert to fraction form
    549,148.97/824,305.73 = 486,376.61/x
  3. Step 3: Cross multiply
    549,148.97x = 824,305.73 × 486,376.61
  4. Step 4: Simplify right side
    549,148.97x = 400,923,020,007.56
  5. Step 5: Solve for x
    x = 400,923,020,007.56/549,148.97
  6. Step 6: Final answer
    x = 730,080.62

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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.