Home / 1,207,458.10-1,811,187.15-1,191,711.70

Finding the Fourth Proportional to 1,207,458.10, 1,811,187.15 and 1,191,711.70

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Solution

The fourth proportional to 1,207,458.10, 1,811,187.15 and 1,191,711.70 is: 1,787,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,458.10 : 1,811,187.15 = 1,191,711.70 : x
  2. Step 2: Convert to fraction form
    1,207,458.10/1,811,187.15 = 1,191,711.70/x
  3. Step 3: Cross multiply
    1,207,458.10x = 1,811,187.15 × 1,191,711.70
  4. Step 4: Simplify right side
    1,207,458.10x = 2,158,412,917,544.65
  5. Step 5: Solve for x
    x = 2,158,412,917,544.65/1,207,458.10
  6. Step 6: Final answer
    x = 1,787,567.55

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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.