Home / 1,217,246.80-1,825,870.20-1,126,267.60

Finding the Fourth Proportional to 1,217,246.80, 1,825,870.20 and 1,126,267.60

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Solution

The fourth proportional to 1,217,246.80, 1,825,870.20 and 1,126,267.60 is: 1,689,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,246.80 : 1,825,870.20 = 1,126,267.60 : x
  2. Step 2: Convert to fraction form
    1,217,246.80/1,825,870.20 = 1,126,267.60/x
  3. Step 3: Cross multiply
    1,217,246.80x = 1,825,870.20 × 1,126,267.60
  4. Step 4: Simplify right side
    1,217,246.80x = 2,056,418,448,065.52
  5. Step 5: Solve for x
    x = 2,056,418,448,065.52/1,217,246.80
  6. Step 6: Final answer
    x = 1,689,401.40

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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.