Home / 1,441,132.80-1,988,728.58-787,729.50

Finding the Fourth Proportional to 1,441,132.80, 1,988,728.58 and 787,729.50

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Solution

The fourth proportional to 1,441,132.80, 1,988,728.58 and 787,729.50 is: 1,087,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,132.80 : 1,988,728.58 = 787,729.50 : x
  2. Step 2: Convert to fraction form
    1,441,132.80/1,988,728.58 = 787,729.50/x
  3. Step 3: Cross multiply
    1,441,132.80x = 1,988,728.58 × 787,729.50
  4. Step 4: Simplify right side
    1,441,132.80x = 1,566,580,166,020.46
  5. Step 5: Solve for x
    x = 1,566,580,166,020.46/1,441,132.80
  6. Step 6: Final answer
    x = 1,087,047.75

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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.