Home / 981,880.40-1,472,820.60-824,286.80

Finding the Fourth Proportional to 981,880.40, 1,472,820.60 and 824,286.80

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Solution

The fourth proportional to 981,880.40, 1,472,820.60 and 824,286.80 is: 1,236,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,880.40 : 1,472,820.60 = 824,286.80 : x
  2. Step 2: Convert to fraction form
    981,880.40/1,472,820.60 = 824,286.80/x
  3. Step 3: Cross multiply
    981,880.40x = 1,472,820.60 × 824,286.80
  4. Step 4: Simplify right side
    981,880.40x = 1,214,026,579,348.08
  5. Step 5: Solve for x
    x = 1,214,026,579,348.08/981,880.40
  6. Step 6: Final answer
    x = 1,236,430.20

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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.