Home / 754,945.40-1,132,418.10-419,022.20

Finding the Fourth Proportional to 754,945.40, 1,132,418.10 and 419,022.20

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Solution

The fourth proportional to 754,945.40, 1,132,418.10 and 419,022.20 is: 628,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,945.40 : 1,132,418.10 = 419,022.20 : x
  2. Step 2: Convert to fraction form
    754,945.40/1,132,418.10 = 419,022.20/x
  3. Step 3: Cross multiply
    754,945.40x = 1,132,418.10 × 419,022.20
  4. Step 4: Simplify right side
    754,945.40x = 474,508,323,581.82
  5. Step 5: Solve for x
    x = 474,508,323,581.82/754,945.40
  6. Step 6: Final answer
    x = 628,533.30

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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.