Home / 678,554.20-1,017,831.30-627,232.60

Finding the Fourth Proportional to 678,554.20, 1,017,831.30 and 627,232.60

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Solution

The fourth proportional to 678,554.20, 1,017,831.30 and 627,232.60 is: 940,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,554.20 : 1,017,831.30 = 627,232.60 : x
  2. Step 2: Convert to fraction form
    678,554.20/1,017,831.30 = 627,232.60/x
  3. Step 3: Cross multiply
    678,554.20x = 1,017,831.30 × 627,232.60
  4. Step 4: Simplify right side
    678,554.20x = 638,416,972,660.38
  5. Step 5: Solve for x
    x = 638,416,972,660.38/678,554.20
  6. Step 6: Final answer
    x = 940,848.90

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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.