Home / 858,151.40-1,287,227.10-818,785.40

Finding the Fourth Proportional to 858,151.40, 1,287,227.10 and 818,785.40

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Solution

The fourth proportional to 858,151.40, 1,287,227.10 and 818,785.40 is: 1,228,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,151.40 : 1,287,227.10 = 818,785.40 : x
  2. Step 2: Convert to fraction form
    858,151.40/1,287,227.10 = 818,785.40/x
  3. Step 3: Cross multiply
    858,151.40x = 1,287,227.10 × 818,785.40
  4. Step 4: Simplify right side
    858,151.40x = 1,053,962,755,964.34
  5. Step 5: Solve for x
    x = 1,053,962,755,964.34/858,151.40
  6. Step 6: Final answer
    x = 1,228,178.10

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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.