Home / 1,040,122.90-1,560,330.15-408,889.90

Finding the Fourth Proportional to 1,040,122.90, 1,560,330.15 and 408,889.90

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Solution

The fourth proportional to 1,040,122.90, 1,560,330.15 and 408,889.90 is: 613,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,122.90 : 1,560,330.15 = 408,889.90 : x
  2. Step 2: Convert to fraction form
    1,040,122.90/1,560,330.15 = 408,889.90/x
  3. Step 3: Cross multiply
    1,040,122.90x = 1,560,330.15 × 408,889.90
  4. Step 4: Simplify right side
    1,040,122.90x = 638,003,239,000.49
  5. Step 5: Solve for x
    x = 638,003,239,000.49/1,040,122.90
  6. Step 6: Final answer
    x = 613,392.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.