Home / 810,175.68-1,215,525.96-389,484.36

Finding the Fourth Proportional to 810,175.68, 1,215,525.96 and 389,484.36

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Solution

The fourth proportional to 810,175.68, 1,215,525.96 and 389,484.36 is: 584,352.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,175.68 : 1,215,525.96 = 389,484.36 : x
  2. Step 2: Convert to fraction form
    810,175.68/1,215,525.96 = 389,484.36/x
  3. Step 3: Cross multiply
    810,175.68x = 1,215,525.96 × 389,484.36
  4. Step 4: Simplify right side
    810,175.68x = 473,428,350,593.99
  5. Step 5: Solve for x
    x = 473,428,350,593.99/810,175.68
  6. Step 6: Final answer
    x = 584,352.71

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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.