Home / 1,207,154.52-1,811,012.24-354,191.72

Finding the Fourth Proportional to 1,207,154.52, 1,811,012.24 and 354,191.72

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Solution

The fourth proportional to 1,207,154.52, 1,811,012.24 and 354,191.72 is: 531,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,154.52 : 1,811,012.24 = 354,191.72 : x
  2. Step 2: Convert to fraction form
    1,207,154.52/1,811,012.24 = 354,191.72/x
  3. Step 3: Cross multiply
    1,207,154.52x = 1,811,012.24 × 354,191.72
  4. Step 4: Simplify right side
    1,207,154.52x = 641,445,540,226.65
  5. Step 5: Solve for x
    x = 641,445,540,226.65/1,207,154.52
  6. Step 6: Final answer
    x = 531,369.87

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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.