Home / 1,279,929.60-1,915,228.80-1,167,955.20

Finding the Fourth Proportional to 1,279,929.60, 1,915,228.80 and 1,167,955.20

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Solution

The fourth proportional to 1,279,929.60, 1,915,228.80 and 1,167,955.20 is: 1,747,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,929.60 : 1,915,228.80 = 1,167,955.20 : x
  2. Step 2: Convert to fraction form
    1,279,929.60/1,915,228.80 = 1,167,955.20/x
  3. Step 3: Cross multiply
    1,279,929.60x = 1,915,228.80 × 1,167,955.20
  4. Step 4: Simplify right side
    1,279,929.60x = 2,236,901,436,149.76
  5. Step 5: Solve for x
    x = 2,236,901,436,149.76/1,279,929.60
  6. Step 6: Final answer
    x = 1,747,675.37

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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.