Home / 727,810.56-1,004,382.69-422,068.47

Finding the Fourth Proportional to 727,810.56, 1,004,382.69 and 422,068.47

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Solution

The fourth proportional to 727,810.56, 1,004,382.69 and 422,068.47 is: 582,456.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,810.56 : 1,004,382.69 = 422,068.47 : x
  2. Step 2: Convert to fraction form
    727,810.56/1,004,382.69 = 422,068.47/x
  3. Step 3: Cross multiply
    727,810.56x = 1,004,382.69 × 422,068.47
  4. Step 4: Simplify right side
    727,810.56x = 423,918,265,262.78
  5. Step 5: Solve for x
    x = 423,918,265,262.78/727,810.56
  6. Step 6: Final answer
    x = 582,456.88

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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.