Home / 900,517.32-1,242,710.19-487,054.56

Finding the Fourth Proportional to 900,517.32, 1,242,710.19 and 487,054.56

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Solution

The fourth proportional to 900,517.32, 1,242,710.19 and 487,054.56 is: 672,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,517.32 : 1,242,710.19 = 487,054.56 : x
  2. Step 2: Convert to fraction form
    900,517.32/1,242,710.19 = 487,054.56/x
  3. Step 3: Cross multiply
    900,517.32x = 1,242,710.19 × 487,054.56
  4. Step 4: Simplify right side
    900,517.32x = 605,267,664,797.97
  5. Step 5: Solve for x
    x = 605,267,664,797.97/900,517.32
  6. Step 6: Final answer
    x = 672,133.29

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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.