Home / 1,040,203.70-1,560,305.55-921,230.90

Finding the Fourth Proportional to 1,040,203.70, 1,560,305.55 and 921,230.90

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Solution

The fourth proportional to 1,040,203.70, 1,560,305.55 and 921,230.90 is: 1,381,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,203.70 : 1,560,305.55 = 921,230.90 : x
  2. Step 2: Convert to fraction form
    1,040,203.70/1,560,305.55 = 921,230.90/x
  3. Step 3: Cross multiply
    1,040,203.70x = 1,560,305.55 × 921,230.90
  4. Step 4: Simplify right side
    1,040,203.70x = 1,437,401,686,101.50
  5. Step 5: Solve for x
    x = 1,437,401,686,101.50/1,040,203.70
  6. Step 6: Final answer
    x = 1,381,846.35

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Double scale
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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.