Home / 900,694.28-1,242,947.03-492,791.04

Finding the Fourth Proportional to 900,694.28, 1,242,947.03 and 492,791.04

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Solution

The fourth proportional to 900,694.28, 1,242,947.03 and 492,791.04 is: 680,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,694.28 : 1,242,947.03 = 492,791.04 : x
  2. Step 2: Convert to fraction form
    900,694.28/1,242,947.03 = 492,791.04/x
  3. Step 3: Cross multiply
    900,694.28x = 1,242,947.03 × 492,791.04
  4. Step 4: Simplify right side
    900,694.28x = 612,513,157,114.66
  5. Step 5: Solve for x
    x = 612,513,157,114.66/900,694.28
  6. Step 6: Final answer
    x = 680,045.57

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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.