Home / 1,287,831.92-1,930,960.56-614,119.28

Finding the Fourth Proportional to 1,287,831.92, 1,930,960.56 and 614,119.28

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Solution

The fourth proportional to 1,287,831.92, 1,930,960.56 and 614,119.28 is: 920,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,831.92 : 1,930,960.56 = 614,119.28 : x
  2. Step 2: Convert to fraction form
    1,287,831.92/1,930,960.56 = 614,119.28/x
  3. Step 3: Cross multiply
    1,287,831.92x = 1,930,960.56 × 614,119.28
  4. Step 4: Simplify right side
    1,287,831.92x = 1,185,840,108,815.60
  5. Step 5: Solve for x
    x = 1,185,840,108,815.60/1,287,831.92
  6. Step 6: Final answer
    x = 920,803.48

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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.