Home / 726,236.79-1,002,182.72-403,937.79

Finding the Fourth Proportional to 726,236.79, 1,002,182.72 and 403,937.79

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Solution

The fourth proportional to 726,236.79, 1,002,182.72 and 403,937.79 is: 557,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,236.79 : 1,002,182.72 = 403,937.79 : x
  2. Step 2: Convert to fraction form
    726,236.79/1,002,182.72 = 403,937.79/x
  3. Step 3: Cross multiply
    726,236.79x = 1,002,182.72 × 403,937.79
  4. Step 4: Simplify right side
    726,236.79x = 404,819,468,082.08
  5. Step 5: Solve for x
    x = 404,819,468,082.08/726,236.79
  6. Step 6: Final answer
    x = 557,420.77

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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.