Home / 1,202,136.76-1,658,969.13-658,263.88

Finding the Fourth Proportional to 1,202,136.76, 1,658,969.13 and 658,263.88

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Solution

The fourth proportional to 1,202,136.76, 1,658,969.13 and 658,263.88 is: 908,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,136.76 : 1,658,969.13 = 658,263.88 : x
  2. Step 2: Convert to fraction form
    1,202,136.76/1,658,969.13 = 658,263.88/x
  3. Step 3: Cross multiply
    1,202,136.76x = 1,658,969.13 × 658,263.88
  4. Step 4: Simplify right side
    1,202,136.76x = 1,092,039,456,314.02
  5. Step 5: Solve for x
    x = 1,092,039,456,314.02/1,202,136.76
  6. Step 6: Final answer
    x = 908,415.33

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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.