Home / 1,209,987.76-1,814,982.20-499,234.60

Finding the Fourth Proportional to 1,209,987.76, 1,814,982.20 and 499,234.60

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Solution

The fourth proportional to 1,209,987.76, 1,814,982.20 and 499,234.60 is: 748,852.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,987.76 : 1,814,982.20 = 499,234.60 : x
  2. Step 2: Convert to fraction form
    1,209,987.76/1,814,982.20 = 499,234.60/x
  3. Step 3: Cross multiply
    1,209,987.76x = 1,814,982.20 × 499,234.60
  4. Step 4: Simplify right side
    1,209,987.76x = 906,101,912,624.12
  5. Step 5: Solve for x
    x = 906,101,912,624.12/1,209,987.76
  6. Step 6: Final answer
    x = 748,852.13

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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.