Home / 700,121.40-1,049,793.30-278,921.40

Finding the Fourth Proportional to 700,121.40, 1,049,793.30 and 278,921.40

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Solution

The fourth proportional to 700,121.40, 1,049,793.30 and 278,921.40 is: 418,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,121.40 : 1,049,793.30 = 278,921.40 : x
  2. Step 2: Convert to fraction form
    700,121.40/1,049,793.30 = 278,921.40/x
  3. Step 3: Cross multiply
    700,121.40x = 1,049,793.30 × 278,921.40
  4. Step 4: Simplify right side
    700,121.40x = 292,809,816,946.62
  5. Step 5: Solve for x
    x = 292,809,816,946.62/700,121.40
  6. Step 6: Final answer
    x = 418,227.21

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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.