Home / 781,404.60-1,172,495.70-444,703.80

Finding the Fourth Proportional to 781,404.60, 1,172,495.70 and 444,703.80

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Solution

The fourth proportional to 781,404.60, 1,172,495.70 and 444,703.80 is: 667,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,404.60 : 1,172,495.70 = 444,703.80 : x
  2. Step 2: Convert to fraction form
    781,404.60/1,172,495.70 = 444,703.80/x
  3. Step 3: Cross multiply
    781,404.60x = 1,172,495.70 × 444,703.80
  4. Step 4: Simplify right side
    781,404.60x = 521,413,293,273.66
  5. Step 5: Solve for x
    x = 521,413,293,273.66/781,404.60
  6. Step 6: Final answer
    x = 667,276.97

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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.