Home / 782,010.72-1,178,876.16-729,930.72

Finding the Fourth Proportional to 782,010.72, 1,178,876.16 and 729,930.72

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Solution

The fourth proportional to 782,010.72, 1,178,876.16 and 729,930.72 is: 1,100,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,010.72 : 1,178,876.16 = 729,930.72 : x
  2. Step 2: Convert to fraction form
    782,010.72/1,178,876.16 = 729,930.72/x
  3. Step 3: Cross multiply
    782,010.72x = 1,178,876.16 × 729,930.72
  4. Step 4: Simplify right side
    782,010.72x = 860,497,924,259.64
  5. Step 5: Solve for x
    x = 860,497,924,259.64/782,010.72
  6. Step 6: Final answer
    x = 1,100,365.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.