Home / 1,299,436.80-1,948,863.60-853,288.80

Finding the Fourth Proportional to 1,299,436.80, 1,948,863.60 and 853,288.80

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Solution

The fourth proportional to 1,299,436.80, 1,948,863.60 and 853,288.80 is: 1,279,741.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,436.80 : 1,948,863.60 = 853,288.80 : x
  2. Step 2: Convert to fraction form
    1,299,436.80/1,948,863.60 = 853,288.80/x
  3. Step 3: Cross multiply
    1,299,436.80x = 1,948,863.60 × 853,288.80
  4. Step 4: Simplify right side
    1,299,436.80x = 1,662,943,482,607.68
  5. Step 5: Solve for x
    x = 1,662,943,482,607.68/1,299,436.80
  6. Step 6: Final answer
    x = 1,279,741.72

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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.