Home / 2,118,701.80-3,175,287.90-981,332.20

Finding the Fourth Proportional to 2,118,701.80, 3,175,287.90 and 981,332.20

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Solution

The fourth proportional to 2,118,701.80, 3,175,287.90 and 981,332.20 is: 1,470,717.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,701.80 : 3,175,287.90 = 981,332.20 : x
  2. Step 2: Convert to fraction form
    2,118,701.80/3,175,287.90 = 981,332.20/x
  3. Step 3: Cross multiply
    2,118,701.80x = 3,175,287.90 × 981,332.20
  4. Step 4: Simplify right side
    2,118,701.80x = 3,116,012,260,540.38
  5. Step 5: Solve for x
    x = 3,116,012,260,540.38/2,118,701.80
  6. Step 6: Final answer
    x = 1,470,717.71

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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.