Home / 748,102.20-1,120,922.10-432,007.80

Finding the Fourth Proportional to 748,102.20, 1,120,922.10 and 432,007.80

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Solution

The fourth proportional to 748,102.20, 1,120,922.10 and 432,007.80 is: 647,300.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,102.20 : 1,120,922.10 = 432,007.80 : x
  2. Step 2: Convert to fraction form
    748,102.20/1,120,922.10 = 432,007.80/x
  3. Step 3: Cross multiply
    748,102.20x = 1,120,922.10 × 432,007.80
  4. Step 4: Simplify right side
    748,102.20x = 484,247,090,392.38
  5. Step 5: Solve for x
    x = 484,247,090,392.38/748,102.20
  6. Step 6: Final answer
    x = 647,300.72

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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.