Home / 687,831.12-1,032,018.84-267,227.28

Finding the Fourth Proportional to 687,831.12, 1,032,018.84 and 267,227.28

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Solution

The fourth proportional to 687,831.12, 1,032,018.84 and 267,227.28 is: 400,946.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,831.12 : 1,032,018.84 = 267,227.28 : x
  2. Step 2: Convert to fraction form
    687,831.12/1,032,018.84 = 267,227.28/x
  3. Step 3: Cross multiply
    687,831.12x = 1,032,018.84 × 267,227.28
  4. Step 4: Simplify right side
    687,831.12x = 275,783,587,521.96
  5. Step 5: Solve for x
    x = 275,783,587,521.96/687,831.12
  6. Step 6: Final answer
    x = 400,946.66

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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.