Home / 743,220.80-1,114,831.20-627,747.20

Finding the Fourth Proportional to 743,220.80, 1,114,831.20 and 627,747.20

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Solution

The fourth proportional to 743,220.80, 1,114,831.20 and 627,747.20 is: 941,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,220.80 : 1,114,831.20 = 627,747.20 : x
  2. Step 2: Convert to fraction form
    743,220.80/1,114,831.20 = 627,747.20/x
  3. Step 3: Cross multiply
    743,220.80x = 1,114,831.20 × 627,747.20
  4. Step 4: Simplify right side
    743,220.80x = 699,832,164,272.64
  5. Step 5: Solve for x
    x = 699,832,164,272.64/743,220.80
  6. Step 6: Final answer
    x = 941,620.80

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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.