Home / 767,831.68-1,151,255.41-318,862.45

Finding the Fourth Proportional to 767,831.68, 1,151,255.41 and 318,862.45

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Solution

The fourth proportional to 767,831.68, 1,151,255.41 and 318,862.45 is: 478,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,831.68 : 1,151,255.41 = 318,862.45 : x
  2. Step 2: Convert to fraction form
    767,831.68/1,151,255.41 = 318,862.45/x
  3. Step 3: Cross multiply
    767,831.68x = 1,151,255.41 × 318,862.45
  4. Step 4: Simplify right side
    767,831.68x = 367,092,120,608.36
  5. Step 5: Solve for x
    x = 367,092,120,608.36/767,831.68
  6. Step 6: Final answer
    x = 478,089.31

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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.