Home / 1,116,921.26-1,675,105.08-318,209.72

Finding the Fourth Proportional to 1,116,921.26, 1,675,105.08 and 318,209.72

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Solution

The fourth proportional to 1,116,921.26, 1,675,105.08 and 318,209.72 is: 477,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,921.26 : 1,675,105.08 = 318,209.72 : x
  2. Step 2: Convert to fraction form
    1,116,921.26/1,675,105.08 = 318,209.72/x
  3. Step 3: Cross multiply
    1,116,921.26x = 1,675,105.08 × 318,209.72
  4. Step 4: Simplify right side
    1,116,921.26x = 533,034,710,101.85
  5. Step 5: Solve for x
    x = 533,034,710,101.85/1,116,921.26
  6. Step 6: Final answer
    x = 477,235.71

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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.