Home / 981,708.80-1,472,563.20-554,806.40

Finding the Fourth Proportional to 981,708.80, 1,472,563.20 and 554,806.40

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Solution

The fourth proportional to 981,708.80, 1,472,563.20 and 554,806.40 is: 832,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,708.80 : 1,472,563.20 = 554,806.40 : x
  2. Step 2: Convert to fraction form
    981,708.80/1,472,563.20 = 554,806.40/x
  3. Step 3: Cross multiply
    981,708.80x = 1,472,563.20 × 554,806.40
  4. Step 4: Simplify right side
    981,708.80x = 816,987,487,764.48
  5. Step 5: Solve for x
    x = 816,987,487,764.48/981,708.80
  6. Step 6: Final answer
    x = 832,209.60

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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.