Home / 847,728.80-1,271,593.80-216,643.28

Finding the Fourth Proportional to 847,728.80, 1,271,593.80 and 216,643.28

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Solution

The fourth proportional to 847,728.80, 1,271,593.80 and 216,643.28 is: 324,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,728.80 : 1,271,593.80 = 216,643.28 : x
  2. Step 2: Convert to fraction form
    847,728.80/1,271,593.80 = 216,643.28/x
  3. Step 3: Cross multiply
    847,728.80x = 1,271,593.80 × 216,643.28
  4. Step 4: Simplify right side
    847,728.80x = 275,482,251,659.66
  5. Step 5: Solve for x
    x = 275,482,251,659.66/847,728.80
  6. Step 6: Final answer
    x = 324,965.07

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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.