Home / 860,941.28-1,291,418.40-299,974.88

Finding the Fourth Proportional to 860,941.28, 1,291,418.40 and 299,974.88

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Solution

The fourth proportional to 860,941.28, 1,291,418.40 and 299,974.88 is: 449,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,941.28 : 1,291,418.40 = 299,974.88 : x
  2. Step 2: Convert to fraction form
    860,941.28/1,291,418.40 = 299,974.88/x
  3. Step 3: Cross multiply
    860,941.28x = 1,291,418.40 × 299,974.88
  4. Step 4: Simplify right side
    860,941.28x = 387,393,079,569.79
  5. Step 5: Solve for x
    x = 387,393,079,569.79/860,941.28
  6. Step 6: Final answer
    x = 449,964.58

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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.