Home / 810,127.20-1,215,219.96-304,641.84

Finding the Fourth Proportional to 810,127.20, 1,215,219.96 and 304,641.84

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Solution

The fourth proportional to 810,127.20, 1,215,219.96 and 304,641.84 is: 456,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,127.20 : 1,215,219.96 = 304,641.84 : x
  2. Step 2: Convert to fraction form
    810,127.20/1,215,219.96 = 304,641.84/x
  3. Step 3: Cross multiply
    810,127.20x = 1,215,219.96 × 304,641.84
  4. Step 4: Simplify right side
    810,127.20x = 370,206,844,619.13
  5. Step 5: Solve for x
    x = 370,206,844,619.13/810,127.20
  6. Step 6: Final answer
    x = 456,973.73

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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.