Home / 992,831.40-1,489,247.10-768,882.60

Finding the Fourth Proportional to 992,831.40, 1,489,247.10 and 768,882.60

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Solution

The fourth proportional to 992,831.40, 1,489,247.10 and 768,882.60 is: 1,153,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,831.40 : 1,489,247.10 = 768,882.60 : x
  2. Step 2: Convert to fraction form
    992,831.40/1,489,247.10 = 768,882.60/x
  3. Step 3: Cross multiply
    992,831.40x = 1,489,247.10 × 768,882.60
  4. Step 4: Simplify right side
    992,831.40x = 1,145,056,182,290.46
  5. Step 5: Solve for x
    x = 1,145,056,182,290.46/992,831.40
  6. Step 6: Final answer
    x = 1,153,323.90

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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.