Home / 1,401,280.31-2,097,153.10-861,251.85

Finding the Fourth Proportional to 1,401,280.31, 2,097,153.10 and 861,251.85

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Solution

The fourth proportional to 1,401,280.31, 2,097,153.10 and 861,251.85 is: 1,288,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,280.31 : 2,097,153.10 = 861,251.85 : x
  2. Step 2: Convert to fraction form
    1,401,280.31/2,097,153.10 = 861,251.85/x
  3. Step 3: Cross multiply
    1,401,280.31x = 2,097,153.10 × 861,251.85
  4. Step 4: Simplify right side
    1,401,280.31x = 1,806,176,987,108.24
  5. Step 5: Solve for x
    x = 1,806,176,987,108.24/1,401,280.31
  6. Step 6: Final answer
    x = 1,288,947.67

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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.