Home / 2,178,460.80-3,265,358.40-980,179.20

Finding the Fourth Proportional to 2,178,460.80, 3,265,358.40 and 980,179.20

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Solution

The fourth proportional to 2,178,460.80, 3,265,358.40 and 980,179.20 is: 1,469,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,460.80 : 3,265,358.40 = 980,179.20 : x
  2. Step 2: Convert to fraction form
    2,178,460.80/3,265,358.40 = 980,179.20/x
  3. Step 3: Cross multiply
    2,178,460.80x = 3,265,358.40 × 980,179.20
  4. Step 4: Simplify right side
    2,178,460.80x = 3,200,636,384,225.28
  5. Step 5: Solve for x
    x = 3,200,636,384,225.28/2,178,460.80
  6. Step 6: Final answer
    x = 1,469,219.18

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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.