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Finding the Fourth Proportional to 663,943.44, 995,404.68 and 343,752

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Solution

The fourth proportional to 663,943.44, 995,404.68 and 343,752 is: 515,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,943.44 : 995,404.68 = 343,752 : x
  2. Step 2: Convert to fraction form
    663,943.44/995,404.68 = 343,752/x
  3. Step 3: Cross multiply
    663,943.44x = 995,404.68 × 343,752
  4. Step 4: Simplify right side
    663,943.44x = 342,172,349,559.36
  5. Step 5: Solve for x
    x = 342,172,349,559.36/663,943.44
  6. Step 6: Final answer
    x = 515,363.70

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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.