Home / 827,796.78-1,142,386.47-465,290.46

Finding the Fourth Proportional to 827,796.78, 1,142,386.47 and 465,290.46

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Solution

The fourth proportional to 827,796.78, 1,142,386.47 and 465,290.46 is: 642,115.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,796.78 : 1,142,386.47 = 465,290.46 : x
  2. Step 2: Convert to fraction form
    827,796.78/1,142,386.47 = 465,290.46/x
  3. Step 3: Cross multiply
    827,796.78x = 1,142,386.47 × 465,290.46
  4. Step 4: Simplify right side
    827,796.78x = 531,541,526,124.08
  5. Step 5: Solve for x
    x = 531,541,526,124.08/827,796.78
  6. Step 6: Final answer
    x = 642,115.96

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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.