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Finding the Fourth Proportional to 485,248.86, 669,634.46 and 264,488.06

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Solution

The fourth proportional to 485,248.86, 669,634.46 and 264,488.06 is: 364,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,248.86 : 669,634.46 = 264,488.06 : x
  2. Step 2: Convert to fraction form
    485,248.86/669,634.46 = 264,488.06/x
  3. Step 3: Cross multiply
    485,248.86x = 669,634.46 × 264,488.06
  4. Step 4: Simplify right side
    485,248.86x = 177,110,319,234.55
  5. Step 5: Solve for x
    x = 177,110,319,234.55/485,248.86
  6. Step 6: Final answer
    x = 364,988.64

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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.