Home / 1,028,534.15-1,543,207.34-318,617.55

Finding the Fourth Proportional to 1,028,534.15, 1,543,207.34 and 318,617.55

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Solution

The fourth proportional to 1,028,534.15, 1,543,207.34 and 318,617.55 is: 478,052.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,534.15 : 1,543,207.34 = 318,617.55 : x
  2. Step 2: Convert to fraction form
    1,028,534.15/1,543,207.34 = 318,617.55/x
  3. Step 3: Cross multiply
    1,028,534.15x = 1,543,207.34 × 318,617.55
  4. Step 4: Simplify right side
    1,028,534.15x = 491,692,942,609.36
  5. Step 5: Solve for x
    x = 491,692,942,609.36/1,028,534.15
  6. Step 6: Final answer
    x = 478,052.13

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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.