Home / 917,136.58-1,265,650.92-509,239.18

Finding the Fourth Proportional to 917,136.58, 1,265,650.92 and 509,239.18

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Solution

The fourth proportional to 917,136.58, 1,265,650.92 and 509,239.18 is: 702,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,136.58 : 1,265,650.92 = 509,239.18 : x
  2. Step 2: Convert to fraction form
    917,136.58/1,265,650.92 = 509,239.18/x
  3. Step 3: Cross multiply
    917,136.58x = 1,265,650.92 × 509,239.18
  4. Step 4: Simplify right side
    917,136.58x = 644,519,036,667.05
  5. Step 5: Solve for x
    x = 644,519,036,667.05/917,136.58
  6. Step 6: Final answer
    x = 702,751.42

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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.