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Finding the Fourth Proportional to 543,315.43, 749,737.79 and 301,578.98

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Solution

The fourth proportional to 543,315.43, 749,737.79 and 301,578.98 is: 416,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,315.43 : 749,737.79 = 301,578.98 : x
  2. Step 2: Convert to fraction form
    543,315.43/749,737.79 = 301,578.98/x
  3. Step 3: Cross multiply
    543,315.43x = 749,737.79 × 301,578.98
  4. Step 4: Simplify right side
    543,315.43x = 226,105,153,849.99
  5. Step 5: Solve for x
    x = 226,105,153,849.99/543,315.43
  6. Step 6: Final answer
    x = 416,158.17

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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.