Home / 916,831.20-1,375,246.80-667,999.20

Finding the Fourth Proportional to 916,831.20, 1,375,246.80 and 667,999.20

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Solution

The fourth proportional to 916,831.20, 1,375,246.80 and 667,999.20 is: 1,001,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,831.20 : 1,375,246.80 = 667,999.20 : x
  2. Step 2: Convert to fraction form
    916,831.20/1,375,246.80 = 667,999.20/x
  3. Step 3: Cross multiply
    916,831.20x = 1,375,246.80 × 667,999.20
  4. Step 4: Simplify right side
    916,831.20x = 918,663,762,202.56
  5. Step 5: Solve for x
    x = 918,663,762,202.56/916,831.20
  6. Step 6: Final answer
    x = 1,001,998.80

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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.