Home / 465,831.02-642,869.91-284,513.60

Finding the Fourth Proportional to 465,831.02, 642,869.91 and 284,513.60

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Solution

The fourth proportional to 465,831.02, 642,869.91 and 284,513.60 is: 392,642.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,831.02 : 642,869.91 = 284,513.60 : x
  2. Step 2: Convert to fraction form
    465,831.02/642,869.91 = 284,513.60/x
  3. Step 3: Cross multiply
    465,831.02x = 642,869.91 × 284,513.60
  4. Step 4: Simplify right side
    465,831.02x = 182,905,229,211.43
  5. Step 5: Solve for x
    x = 182,905,229,211.43/465,831.02
  6. Step 6: Final answer
    x = 392,642.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.