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Finding the Fourth Proportional to 491,079.03, 736,615.31 and 126,340.08

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Solution

The fourth proportional to 491,079.03, 736,615.31 and 126,340.08 is: 189,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,079.03 : 736,615.31 = 126,340.08 : x
  2. Step 2: Convert to fraction form
    491,079.03/736,615.31 = 126,340.08/x
  3. Step 3: Cross multiply
    491,079.03x = 736,615.31 × 126,340.08
  4. Step 4: Simplify right side
    491,079.03x = 93,064,036,562.92
  5. Step 5: Solve for x
    x = 93,064,036,562.92/491,079.03
  6. Step 6: Final answer
    x = 189,509.29

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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.