Home / 412,875.10-619,313.60-113,359.78

Finding the Fourth Proportional to 412,875.10, 619,313.60 and 113,359.78

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Solution

The fourth proportional to 412,875.10, 619,313.60 and 113,359.78 is: 170,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,875.10 : 619,313.60 = 113,359.78 : x
  2. Step 2: Convert to fraction form
    412,875.10/619,313.60 = 113,359.78/x
  3. Step 3: Cross multiply
    412,875.10x = 619,313.60 × 113,359.78
  4. Step 4: Simplify right side
    412,875.10x = 70,205,253,447.01
  5. Step 5: Solve for x
    x = 70,205,253,447.01/412,875.10
  6. Step 6: Final answer
    x = 170,039.93

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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.