Home / 1,375,712.10-2,063,568.15-429,081.30

Finding the Fourth Proportional to 1,375,712.10, 2,063,568.15 and 429,081.30

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Solution

The fourth proportional to 1,375,712.10, 2,063,568.15 and 429,081.30 is: 643,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,712.10 : 2,063,568.15 = 429,081.30 : x
  2. Step 2: Convert to fraction form
    1,375,712.10/2,063,568.15 = 429,081.30/x
  3. Step 3: Cross multiply
    1,375,712.10x = 2,063,568.15 × 429,081.30
  4. Step 4: Simplify right side
    1,375,712.10x = 885,438,504,440.60
  5. Step 5: Solve for x
    x = 885,438,504,440.60/1,375,712.10
  6. Step 6: Final answer
    x = 643,621.95

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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.