Home / 1,391,364.40-2,087,046.60-1,055,441.20

Finding the Fourth Proportional to 1,391,364.40, 2,087,046.60 and 1,055,441.20

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Solution

The fourth proportional to 1,391,364.40, 2,087,046.60 and 1,055,441.20 is: 1,583,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,364.40 : 2,087,046.60 = 1,055,441.20 : x
  2. Step 2: Convert to fraction form
    1,391,364.40/2,087,046.60 = 1,055,441.20/x
  3. Step 3: Cross multiply
    1,391,364.40x = 2,087,046.60 × 1,055,441.20
  4. Step 4: Simplify right side
    1,391,364.40x = 2,202,754,967,959.92
  5. Step 5: Solve for x
    x = 2,202,754,967,959.92/1,391,364.40
  6. Step 6: Final answer
    x = 1,583,161.80

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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.