Home / 1,040,210.20-1,560,315.30-921,237.40

Finding the Fourth Proportional to 1,040,210.20, 1,560,315.30 and 921,237.40

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Solution

The fourth proportional to 1,040,210.20, 1,560,315.30 and 921,237.40 is: 1,381,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,210.20 : 1,560,315.30 = 921,237.40 : x
  2. Step 2: Convert to fraction form
    1,040,210.20/1,560,315.30 = 921,237.40/x
  3. Step 3: Cross multiply
    1,040,210.20x = 1,560,315.30 × 921,237.40
  4. Step 4: Simplify right side
    1,040,210.20x = 1,437,420,810,152.22
  5. Step 5: Solve for x
    x = 1,437,420,810,152.22/1,040,210.20
  6. Step 6: Final answer
    x = 1,381,856.10

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Double scale
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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.