Home / 1,866,260.20-2,575,859.15-1,221,306.72

Finding the Fourth Proportional to 1,866,260.20, 2,575,859.15 and 1,221,306.72

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Solution

The fourth proportional to 1,866,260.20, 2,575,859.15 and 1,221,306.72 is: 1,685,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,260.20 : 2,575,859.15 = 1,221,306.72 : x
  2. Step 2: Convert to fraction form
    1,866,260.20/2,575,859.15 = 1,221,306.72/x
  3. Step 3: Cross multiply
    1,866,260.20x = 2,575,859.15 × 1,221,306.72
  4. Step 4: Simplify right side
    1,866,260.20x = 3,145,914,083,561.95
  5. Step 5: Solve for x
    x = 3,145,914,083,561.95/1,866,260.20
  6. Step 6: Final answer
    x = 1,685,678.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.