Home / 1,188,756.28-1,783,128.20-290,202.76

Finding the Fourth Proportional to 1,188,756.28, 1,783,128.20 and 290,202.76

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Solution

The fourth proportional to 1,188,756.28, 1,783,128.20 and 290,202.76 is: 435,302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,756.28 : 1,783,128.20 = 290,202.76 : x
  2. Step 2: Convert to fraction form
    1,188,756.28/1,783,128.20 = 290,202.76/x
  3. Step 3: Cross multiply
    1,188,756.28x = 1,783,128.20 × 290,202.76
  4. Step 4: Simplify right side
    1,188,756.28x = 517,468,725,073.83
  5. Step 5: Solve for x
    x = 517,468,725,073.83/1,188,756.28
  6. Step 6: Final answer
    x = 435,302.62

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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.