Home / 1,328,797.76-1,993,514.12-430,240.46

Finding the Fourth Proportional to 1,328,797.76, 1,993,514.12 and 430,240.46

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Solution

The fourth proportional to 1,328,797.76, 1,993,514.12 and 430,240.46 is: 645,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,797.76 : 1,993,514.12 = 430,240.46 : x
  2. Step 2: Convert to fraction form
    1,328,797.76/1,993,514.12 = 430,240.46/x
  3. Step 3: Cross multiply
    1,328,797.76x = 1,993,514.12 × 430,240.46
  4. Step 4: Simplify right side
    1,328,797.76x = 857,690,419,886.52
  5. Step 5: Solve for x
    x = 857,690,419,886.52/1,328,797.76
  6. Step 6: Final answer
    x = 645,463.48

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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.