Home / 660,353.04-991,112.76-361,106.64

Finding the Fourth Proportional to 660,353.04, 991,112.76 and 361,106.64

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Solution

The fourth proportional to 660,353.04, 991,112.76 and 361,106.64 is: 541,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,353.04 : 991,112.76 = 361,106.64 : x
  2. Step 2: Convert to fraction form
    660,353.04/991,112.76 = 361,106.64/x
  3. Step 3: Cross multiply
    660,353.04x = 991,112.76 × 361,106.64
  4. Step 4: Simplify right side
    660,353.04x = 357,897,398,624.73
  5. Step 5: Solve for x
    x = 357,897,398,624.73/660,353.04
  6. Step 6: Final answer
    x = 541,978.88

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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.