Home / 765,906.24-1,145,659.38-538,185.90

Finding the Fourth Proportional to 765,906.24, 1,145,659.38 and 538,185.90

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Solution

The fourth proportional to 765,906.24, 1,145,659.38 and 538,185.90 is: 805,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,906.24 : 1,145,659.38 = 538,185.90 : x
  2. Step 2: Convert to fraction form
    765,906.24/1,145,659.38 = 538,185.90/x
  3. Step 3: Cross multiply
    765,906.24x = 1,145,659.38 × 538,185.90
  4. Step 4: Simplify right side
    765,906.24x = 616,577,724,518.74
  5. Step 5: Solve for x
    x = 616,577,724,518.74/765,906.24
  6. Step 6: Final answer
    x = 805,030.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.