Home / 747,801.90-1,120,937.40-368,138.70

Finding the Fourth Proportional to 747,801.90, 1,120,937.40 and 368,138.70

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Solution

The fourth proportional to 747,801.90, 1,120,937.40 and 368,138.70 is: 551,831.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,801.90 : 1,120,937.40 = 368,138.70 : x
  2. Step 2: Convert to fraction form
    747,801.90/1,120,937.40 = 368,138.70/x
  3. Step 3: Cross multiply
    747,801.90x = 1,120,937.40 × 368,138.70
  4. Step 4: Simplify right side
    747,801.90x = 412,660,437,217.38
  5. Step 5: Solve for x
    x = 412,660,437,217.38/747,801.90
  6. Step 6: Final answer
    x = 551,831.22

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1.5x scale

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.