Home / 1,187,222.87-1,781,085.85-457,764.75

Finding the Fourth Proportional to 1,187,222.87, 1,781,085.85 and 457,764.75

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Solution

The fourth proportional to 1,187,222.87, 1,781,085.85 and 457,764.75 is: 686,744.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,222.87 : 1,781,085.85 = 457,764.75 : x
  2. Step 2: Convert to fraction form
    1,187,222.87/1,781,085.85 = 457,764.75/x
  3. Step 3: Cross multiply
    1,187,222.87x = 1,781,085.85 × 457,764.75
  4. Step 4: Simplify right side
    1,187,222.87x = 815,318,317,709.38
  5. Step 5: Solve for x
    x = 815,318,317,709.38/1,187,222.87
  6. Step 6: Final answer
    x = 686,744.11

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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.