Home / 1,845,191.40-2,768,160.66-780,231.72

Finding the Fourth Proportional to 1,845,191.40, 2,768,160.66 and 780,231.72

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Solution

The fourth proportional to 1,845,191.40, 2,768,160.66 and 780,231.72 is: 1,170,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845,191.40 : 2,768,160.66 = 780,231.72 : x
  2. Step 2: Convert to fraction form
    1,845,191.40/2,768,160.66 = 780,231.72/x
  3. Step 3: Cross multiply
    1,845,191.40x = 2,768,160.66 × 780,231.72
  4. Step 4: Simplify right side
    1,845,191.40x = 2,159,806,752,988.14
  5. Step 5: Solve for x
    x = 2,159,806,752,988.14/1,845,191.40
  6. Step 6: Final answer
    x = 1,170,505.54

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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.