Home / 725,396.72-1,000,983.76-403,086.40

Finding the Fourth Proportional to 725,396.72, 1,000,983.76 and 403,086.40

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Solution

The fourth proportional to 725,396.72, 1,000,983.76 and 403,086.40 is: 556,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,396.72 : 1,000,983.76 = 403,086.40 : x
  2. Step 2: Convert to fraction form
    725,396.72/1,000,983.76 = 403,086.40/x
  3. Step 3: Cross multiply
    725,396.72x = 1,000,983.76 × 403,086.40
  4. Step 4: Simplify right side
    725,396.72x = 403,482,940,276.86
  5. Step 5: Solve for x
    x = 403,482,940,276.86/725,396.72
  6. Step 6: Final answer
    x = 556,223.83

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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.