Home / 757,749.92-1,045,689.72-418,218.20

Finding the Fourth Proportional to 757,749.92, 1,045,689.72 and 418,218.20

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Solution

The fourth proportional to 757,749.92, 1,045,689.72 and 418,218.20 is: 577,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,749.92 : 1,045,689.72 = 418,218.20 : x
  2. Step 2: Convert to fraction form
    757,749.92/1,045,689.72 = 418,218.20/x
  3. Step 3: Cross multiply
    757,749.92x = 1,045,689.72 × 418,218.20
  4. Step 4: Simplify right side
    757,749.92x = 437,326,472,456.90
  5. Step 5: Solve for x
    x = 437,326,472,456.90/757,749.92
  6. Step 6: Final answer
    x = 577,138.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.