Home / 1,321,325.80-1,981,562.20-374,442.28

Finding the Fourth Proportional to 1,321,325.80, 1,981,562.20 and 374,442.28

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Solution

The fourth proportional to 1,321,325.80, 1,981,562.20 and 374,442.28 is: 561,542.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,325.80 : 1,981,562.20 = 374,442.28 : x
  2. Step 2: Convert to fraction form
    1,321,325.80/1,981,562.20 = 374,442.28/x
  3. Step 3: Cross multiply
    1,321,325.80x = 1,981,562.20 × 374,442.28
  4. Step 4: Simplify right side
    1,321,325.80x = 741,980,668,129.82
  5. Step 5: Solve for x
    x = 741,980,668,129.82/1,321,325.80
  6. Step 6: Final answer
    x = 561,542.56

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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.