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Finding the Fourth Proportional to 447,012.76, 616,878.36 and 243,063.52

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Solution

The fourth proportional to 447,012.76, 616,878.36 and 243,063.52 is: 335,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,012.76 : 616,878.36 = 243,063.52 : x
  2. Step 2: Convert to fraction form
    447,012.76/616,878.36 = 243,063.52/x
  3. Step 3: Cross multiply
    447,012.76x = 616,878.36 × 243,063.52
  4. Step 4: Simplify right side
    447,012.76x = 149,940,625,593.43
  5. Step 5: Solve for x
    x = 149,940,625,593.43/447,012.76
  6. Step 6: Final answer
    x = 335,428.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.