Home / 762,578.66-1,143,617.22-257,003.39

Finding the Fourth Proportional to 762,578.66, 1,143,617.22 and 257,003.39

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Solution

The fourth proportional to 762,578.66, 1,143,617.22 and 257,003.39 is: 385,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,578.66 : 1,143,617.22 = 257,003.39 : x
  2. Step 2: Convert to fraction form
    762,578.66/1,143,617.22 = 257,003.39/x
  3. Step 3: Cross multiply
    762,578.66x = 1,143,617.22 × 257,003.39
  4. Step 4: Simplify right side
    762,578.66x = 293,913,496,684.29
  5. Step 5: Solve for x
    x = 293,913,496,684.29/762,578.66
  6. Step 6: Final answer
    x = 385,420.57

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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.