Home / 889,860.47-1,334,780.67-215,949.17

Finding the Fourth Proportional to 889,860.47, 1,334,780.67 and 215,949.17

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Solution

The fourth proportional to 889,860.47, 1,334,780.67 and 215,949.17 is: 323,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,860.47 : 1,334,780.67 = 215,949.17 : x
  2. Step 2: Convert to fraction form
    889,860.47/1,334,780.67 = 215,949.17/x
  3. Step 3: Cross multiply
    889,860.47x = 1,334,780.67 × 215,949.17
  4. Step 4: Simplify right side
    889,860.47x = 288,244,781,965.31
  5. Step 5: Solve for x
    x = 288,244,781,965.31/889,860.47
  6. Step 6: Final answer
    x = 323,921.33

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1.5x scale

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.