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Finding the Fourth Proportional to 543,451.19, 749,981.78 and 301,737.47

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Solution

The fourth proportional to 543,451.19, 749,981.78 and 301,737.47 is: 416,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,451.19 : 749,981.78 = 301,737.47 : x
  2. Step 2: Convert to fraction form
    543,451.19/749,981.78 = 301,737.47/x
  3. Step 3: Cross multiply
    543,451.19x = 749,981.78 × 301,737.47
  4. Step 4: Simplify right side
    543,451.19x = 226,297,599,584.70
  5. Step 5: Solve for x
    x = 226,297,599,584.70/543,451.19
  6. Step 6: Final answer
    x = 416,408.33

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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.