Home / 1,245,010.40-1,867,515.60-1,235,679.20

Finding the Fourth Proportional to 1,245,010.40, 1,867,515.60 and 1,235,679.20

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Solution

The fourth proportional to 1,245,010.40, 1,867,515.60 and 1,235,679.20 is: 1,853,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,010.40 : 1,867,515.60 = 1,235,679.20 : x
  2. Step 2: Convert to fraction form
    1,245,010.40/1,867,515.60 = 1,235,679.20/x
  3. Step 3: Cross multiply
    1,245,010.40x = 1,867,515.60 × 1,235,679.20
  4. Step 4: Simplify right side
    1,245,010.40x = 2,307,650,182,595.52
  5. Step 5: Solve for x
    x = 2,307,650,182,595.52/1,245,010.40
  6. Step 6: Final answer
    x = 1,853,518.80

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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.