Home / 1,188,757.28-1,783,129.70-290,203.76

Finding the Fourth Proportional to 1,188,757.28, 1,783,129.70 and 290,203.76

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Solution

The fourth proportional to 1,188,757.28, 1,783,129.70 and 290,203.76 is: 435,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,757.28 : 1,783,129.70 = 290,203.76 : x
  2. Step 2: Convert to fraction form
    1,188,757.28/1,783,129.70 = 290,203.76/x
  3. Step 3: Cross multiply
    1,188,757.28x = 1,783,129.70 × 290,203.76
  4. Step 4: Simplify right side
    1,188,757.28x = 517,470,943,507.67
  5. Step 5: Solve for x
    x = 517,470,943,507.67/1,188,757.28
  6. Step 6: Final answer
    x = 435,304.12

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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.