Home / 805,192.64-1,111,179.66-442,631.78

Finding the Fourth Proportional to 805,192.64, 1,111,179.66 and 442,631.78

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Solution

The fourth proportional to 805,192.64, 1,111,179.66 and 442,631.78 is: 610,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,192.64 : 1,111,179.66 = 442,631.78 : x
  2. Step 2: Convert to fraction form
    805,192.64/1,111,179.66 = 442,631.78/x
  3. Step 3: Cross multiply
    805,192.64x = 1,111,179.66 × 442,631.78
  4. Step 4: Simplify right side
    805,192.64x = 491,843,430,805.60
  5. Step 5: Solve for x
    x = 491,843,430,805.60/805,192.64
  6. Step 6: Final answer
    x = 610,839.45

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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.