Home / 829,815.80-1,244,789.14-408,862.20

Finding the Fourth Proportional to 829,815.80, 1,244,789.14 and 408,862.20

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Solution

The fourth proportional to 829,815.80, 1,244,789.14 and 408,862.20 is: 613,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,815.80 : 1,244,789.14 = 408,862.20 : x
  2. Step 2: Convert to fraction form
    829,815.80/1,244,789.14 = 408,862.20/x
  3. Step 3: Cross multiply
    829,815.80x = 1,244,789.14 × 408,862.20
  4. Step 4: Simplify right side
    829,815.80x = 508,947,226,316.51
  5. Step 5: Solve for x
    x = 508,947,226,316.51/829,815.80
  6. Step 6: Final answer
    x = 613,325.54

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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.