Home / 809,412.30-1,116,990.60-446,836.65

Finding the Fourth Proportional to 809,412.30, 1,116,990.60 and 446,836.65

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Solution

The fourth proportional to 809,412.30, 1,116,990.60 and 446,836.65 is: 616,635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,412.30 : 1,116,990.60 = 446,836.65 : x
  2. Step 2: Convert to fraction form
    809,412.30/1,116,990.60 = 446,836.65/x
  3. Step 3: Cross multiply
    809,412.30x = 1,116,990.60 × 446,836.65
  4. Step 4: Simplify right side
    809,412.30x = 499,112,337,785.49
  5. Step 5: Solve for x
    x = 499,112,337,785.49/809,412.30
  6. Step 6: Final answer
    x = 616,635.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.