Home / 726,717.42-1,002,862.72-404,422.07

Finding the Fourth Proportional to 726,717.42, 1,002,862.72 and 404,422.07

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Solution

The fourth proportional to 726,717.42, 1,002,862.72 and 404,422.07 is: 558,098.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,717.42 : 1,002,862.72 = 404,422.07 : x
  2. Step 2: Convert to fraction form
    726,717.42/1,002,862.72 = 404,422.07/x
  3. Step 3: Cross multiply
    726,717.42x = 1,002,862.72 × 404,422.07
  4. Step 4: Simplify right side
    726,717.42x = 405,579,812,639.44
  5. Step 5: Solve for x
    x = 405,579,812,639.44/726,717.42
  6. Step 6: Final answer
    x = 558,098.38

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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.