Home / 1,188,747.28-1,783,114.68-290,193.76

Finding the Fourth Proportional to 1,188,747.28, 1,783,114.68 and 290,193.76

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Solution

The fourth proportional to 1,188,747.28, 1,783,114.68 and 290,193.76 is: 435,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,747.28 : 1,783,114.68 = 290,193.76 : x
  2. Step 2: Convert to fraction form
    1,188,747.28/1,783,114.68 = 290,193.76/x
  3. Step 3: Cross multiply
    1,188,747.28x = 1,783,114.68 × 290,193.76
  4. Step 4: Simplify right side
    1,188,747.28x = 517,448,753,500.40
  5. Step 5: Solve for x
    x = 517,448,753,500.40/1,188,747.28
  6. Step 6: Final answer
    x = 435,289.12

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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.