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Finding the Fourth Proportional to 540,716.16, 745,940.28 and 349,791.12

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Solution

The fourth proportional to 540,716.16, 745,940.28 and 349,791.12 is: 482,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,716.16 : 745,940.28 = 349,791.12 : x
  2. Step 2: Convert to fraction form
    540,716.16/745,940.28 = 349,791.12/x
  3. Step 3: Cross multiply
    540,716.16x = 745,940.28 × 349,791.12
  4. Step 4: Simplify right side
    540,716.16x = 260,923,285,994.31
  5. Step 5: Solve for x
    x = 260,923,285,994.31/540,716.16
  6. Step 6: Final answer
    x = 482,551.30

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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.