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Finding the Fourth Proportional to 628,677.88, 943,007.56 and 155,363.24

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Solution

The fourth proportional to 628,677.88, 943,007.56 and 155,363.24 is: 233,042.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,677.88 : 943,007.56 = 155,363.24 : x
  2. Step 2: Convert to fraction form
    628,677.88/943,007.56 = 155,363.24/x
  3. Step 3: Cross multiply
    628,677.88x = 943,007.56 × 155,363.24
  4. Step 4: Simplify right side
    628,677.88x = 146,508,709,866.09
  5. Step 5: Solve for x
    x = 146,508,709,866.09/628,677.88
  6. Step 6: Final answer
    x = 233,042.57

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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.