Home / 754,429.10-1,131,643.65-400,135.10

Finding the Fourth Proportional to 754,429.10, 1,131,643.65 and 400,135.10

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Solution

The fourth proportional to 754,429.10, 1,131,643.65 and 400,135.10 is: 600,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,429.10 : 1,131,643.65 = 400,135.10 : x
  2. Step 2: Convert to fraction form
    754,429.10/1,131,643.65 = 400,135.10/x
  3. Step 3: Cross multiply
    754,429.10x = 1,131,643.65 × 400,135.10
  4. Step 4: Simplify right side
    754,429.10x = 452,810,345,057.12
  5. Step 5: Solve for x
    x = 452,810,345,057.12/754,429.10
  6. Step 6: Final answer
    x = 600,202.65

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Similar ratio
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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.