Home / 385,519.29-577,748.42-328,297.12

Finding the Fourth Proportional to 385,519.29, 577,748.42 and 328,297.12

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Solution

The fourth proportional to 385,519.29, 577,748.42 and 328,297.12 is: 491,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,519.29 : 577,748.42 = 328,297.12 : x
  2. Step 2: Convert to fraction form
    385,519.29/577,748.42 = 328,297.12/x
  3. Step 3: Cross multiply
    385,519.29x = 577,748.42 × 328,297.12
  4. Step 4: Simplify right side
    385,519.29x = 189,673,142,370.55
  5. Step 5: Solve for x
    x = 189,673,142,370.55/385,519.29
  6. Step 6: Final answer
    x = 491,993.91

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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.