Home / 1,293,513.03-1,784,932.20-720,540.90

Finding the Fourth Proportional to 1,293,513.03, 1,784,932.20 and 720,540.90

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Solution

The fourth proportional to 1,293,513.03, 1,784,932.20 and 720,540.90 is: 994,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,513.03 : 1,784,932.20 = 720,540.90 : x
  2. Step 2: Convert to fraction form
    1,293,513.03/1,784,932.20 = 720,540.90/x
  3. Step 3: Cross multiply
    1,293,513.03x = 1,784,932.20 × 720,540.90
  4. Step 4: Simplify right side
    1,293,513.03x = 1,286,116,653,826.98
  5. Step 5: Solve for x
    x = 1,286,116,653,826.98/1,293,513.03
  6. Step 6: Final answer
    x = 994,281.95

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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.