Home / 900,420.18-1,350,629.55-360,920.22

Finding the Fourth Proportional to 900,420.18, 1,350,629.55 and 360,920.22

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Solution

The fourth proportional to 900,420.18, 1,350,629.55 and 360,920.22 is: 541,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,420.18 : 1,350,629.55 = 360,920.22 : x
  2. Step 2: Convert to fraction form
    900,420.18/1,350,629.55 = 360,920.22/x
  3. Step 3: Cross multiply
    900,420.18x = 1,350,629.55 × 360,920.22
  4. Step 4: Simplify right side
    900,420.18x = 487,469,514,324.50
  5. Step 5: Solve for x
    x = 487,469,514,324.50/900,420.18
  6. Step 6: Final answer
    x = 541,380.04

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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.