Home / 469,268.45-648,125.07-318,103.01

Finding the Fourth Proportional to 469,268.45, 648,125.07 and 318,103.01

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Solution

The fourth proportional to 469,268.45, 648,125.07 and 318,103.01 is: 439,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,268.45 : 648,125.07 = 318,103.01 : x
  2. Step 2: Convert to fraction form
    469,268.45/648,125.07 = 318,103.01/x
  3. Step 3: Cross multiply
    469,268.45x = 648,125.07 × 318,103.01
  4. Step 4: Simplify right side
    469,268.45x = 206,170,535,623.46
  5. Step 5: Solve for x
    x = 206,170,535,623.46/469,268.45
  6. Step 6: Final answer
    x = 439,344.55

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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.