Home / 853,301.40-1,278,108.90-705,845.40

Finding the Fourth Proportional to 853,301.40, 1,278,108.90 and 705,845.40

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Solution

The fourth proportional to 853,301.40, 1,278,108.90 and 705,845.40 is: 1,057,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,301.40 : 1,278,108.90 = 705,845.40 : x
  2. Step 2: Convert to fraction form
    853,301.40/1,278,108.90 = 705,845.40/x
  3. Step 3: Cross multiply
    853,301.40x = 1,278,108.90 × 705,845.40
  4. Step 4: Simplify right side
    853,301.40x = 902,147,287,764.06
  5. Step 5: Solve for x
    x = 902,147,287,764.06/853,301.40
  6. Step 6: Final answer
    x = 1,057,243.42

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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.