Home / 726,228.30-1,002,180.65-403,931.46

Finding the Fourth Proportional to 726,228.30, 1,002,180.65 and 403,931.46

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Solution

The fourth proportional to 726,228.30, 1,002,180.65 and 403,931.46 is: 557,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,228.30 : 1,002,180.65 = 403,931.46 : x
  2. Step 2: Convert to fraction form
    726,228.30/1,002,180.65 = 403,931.46/x
  3. Step 3: Cross multiply
    726,228.30x = 1,002,180.65 × 403,931.46
  4. Step 4: Simplify right side
    726,228.30x = 404,812,293,138.25
  5. Step 5: Solve for x
    x = 404,812,293,138.25/726,228.30
  6. Step 6: Final answer
    x = 557,417.40

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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.