Home / 1,399,780.08-2,100,003.12-453,150.72

Finding the Fourth Proportional to 1,399,780.08, 2,100,003.12 and 453,150.72

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Solution

The fourth proportional to 1,399,780.08, 2,100,003.12 and 453,150.72 is: 679,833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,780.08 : 2,100,003.12 = 453,150.72 : x
  2. Step 2: Convert to fraction form
    1,399,780.08/2,100,003.12 = 453,150.72/x
  3. Step 3: Cross multiply
    1,399,780.08x = 2,100,003.12 × 453,150.72
  4. Step 4: Simplify right side
    1,399,780.08x = 951,617,925,830.25
  5. Step 5: Solve for x
    x = 951,617,925,830.25/1,399,780.08
  6. Step 6: Final answer
    x = 679,833.88

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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.