Home / 818,036.92-1,227,231.27-407,929.70

Finding the Fourth Proportional to 818,036.92, 1,227,231.27 and 407,929.70

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Solution

The fourth proportional to 818,036.92, 1,227,231.27 and 407,929.70 is: 611,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,036.92 : 1,227,231.27 = 407,929.70 : x
  2. Step 2: Convert to fraction form
    818,036.92/1,227,231.27 = 407,929.70/x
  3. Step 3: Cross multiply
    818,036.92x = 1,227,231.27 × 407,929.70
  4. Step 4: Simplify right side
    818,036.92x = 500,624,077,665.56
  5. Step 5: Solve for x
    x = 500,624,077,665.56/818,036.92
  6. Step 6: Final answer
    x = 611,982.26

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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.