Home / 902,481.20-1,245,266.16-515,119.76

Finding the Fourth Proportional to 902,481.20, 1,245,266.16 and 515,119.76

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Solution

The fourth proportional to 902,481.20, 1,245,266.16 and 515,119.76 is: 710,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,481.20 : 1,245,266.16 = 515,119.76 : x
  2. Step 2: Convert to fraction form
    902,481.20/1,245,266.16 = 515,119.76/x
  3. Step 3: Cross multiply
    902,481.20x = 1,245,266.16 × 515,119.76
  4. Step 4: Simplify right side
    902,481.20x = 641,461,205,475.32
  5. Step 5: Solve for x
    x = 641,461,205,475.32/902,481.20
  6. Step 6: Final answer
    x = 710,775.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.