Home / 693,854.60-1,040,090.70-319,224.20

Finding the Fourth Proportional to 693,854.60, 1,040,090.70 and 319,224.20

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Solution

The fourth proportional to 693,854.60, 1,040,090.70 and 319,224.20 is: 478,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,854.60 : 1,040,090.70 = 319,224.20 : x
  2. Step 2: Convert to fraction form
    693,854.60/1,040,090.70 = 319,224.20/x
  3. Step 3: Cross multiply
    693,854.60x = 1,040,090.70 × 319,224.20
  4. Step 4: Simplify right side
    693,854.60x = 332,022,121,634.94
  5. Step 5: Solve for x
    x = 332,022,121,634.94/693,854.60
  6. Step 6: Final answer
    x = 478,518.30

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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.