Home / 1,122,055.60-1,687,230.60-939,578.80

Finding the Fourth Proportional to 1,122,055.60, 1,687,230.60 and 939,578.80

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Solution

The fourth proportional to 1,122,055.60, 1,687,230.60 and 939,578.80 is: 1,412,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,055.60 : 1,687,230.60 = 939,578.80 : x
  2. Step 2: Convert to fraction form
    1,122,055.60/1,687,230.60 = 939,578.80/x
  3. Step 3: Cross multiply
    1,122,055.60x = 1,687,230.60 × 939,578.80
  4. Step 4: Simplify right side
    1,122,055.60x = 1,585,286,102,471.28
  5. Step 5: Solve for x
    x = 1,585,286,102,471.28/1,122,055.60
  6. Step 6: Final answer
    x = 1,412,840.95

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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.