Home / 726,228.80-1,002,181.34-403,931.96

Finding the Fourth Proportional to 726,228.80, 1,002,181.34 and 403,931.96

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Solution

The fourth proportional to 726,228.80, 1,002,181.34 and 403,931.96 is: 557,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,228.80 : 1,002,181.34 = 403,931.96 : x
  2. Step 2: Convert to fraction form
    726,228.80/1,002,181.34 = 403,931.96/x
  3. Step 3: Cross multiply
    726,228.80x = 1,002,181.34 × 403,931.96
  4. Step 4: Simplify right side
    726,228.80x = 404,813,072,941.63
  5. Step 5: Solve for x
    x = 404,813,072,941.63/726,228.80
  6. Step 6: Final answer
    x = 557,418.09

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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.