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Finding the Fourth Proportional to 557,517.71, 835,011.75 and 355,114.91

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Solution

The fourth proportional to 557,517.71, 835,011.75 and 355,114.91 is: 531,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,517.71 : 835,011.75 = 355,114.91 : x
  2. Step 2: Convert to fraction form
    557,517.71/835,011.75 = 355,114.91/x
  3. Step 3: Cross multiply
    557,517.71x = 835,011.75 × 355,114.91
  4. Step 4: Simplify right side
    557,517.71x = 296,525,122,450.19
  5. Step 5: Solve for x
    x = 296,525,122,450.19/557,517.71
  6. Step 6: Final answer
    x = 531,866.73

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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.