Home / 917,072.68-1,265,599.82-509,174.54

Finding the Fourth Proportional to 917,072.68, 1,265,599.82 and 509,174.54

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Solution

The fourth proportional to 917,072.68, 1,265,599.82 and 509,174.54 is: 702,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,072.68 : 1,265,599.82 = 509,174.54 : x
  2. Step 2: Convert to fraction form
    917,072.68/1,265,599.82 = 509,174.54/x
  3. Step 3: Cross multiply
    917,072.68x = 1,265,599.82 × 509,174.54
  4. Step 4: Simplify right side
    917,072.68x = 644,411,198,571.65
  5. Step 5: Solve for x
    x = 644,411,198,571.65/917,072.68
  6. Step 6: Final answer
    x = 702,682.80

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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.