Home / 1,245,689.41-1,719,051.32-672,729.53

Finding the Fourth Proportional to 1,245,689.41, 1,719,051.32 and 672,729.53

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Solution

The fourth proportional to 1,245,689.41, 1,719,051.32 and 672,729.53 is: 928,366.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,689.41 : 1,719,051.32 = 672,729.53 : x
  2. Step 2: Convert to fraction form
    1,245,689.41/1,719,051.32 = 672,729.53/x
  3. Step 3: Cross multiply
    1,245,689.41x = 1,719,051.32 × 672,729.53
  4. Step 4: Simplify right side
    1,245,689.41x = 1,156,456,586,549.48
  5. Step 5: Solve for x
    x = 1,156,456,586,549.48/1,245,689.41
  6. Step 6: Final answer
    x = 928,366.72

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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.