Home / 690,118.98-1,035,282.96-216,759.84

Finding the Fourth Proportional to 690,118.98, 1,035,282.96 and 216,759.84

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Solution

The fourth proportional to 690,118.98, 1,035,282.96 and 216,759.84 is: 325,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,118.98 : 1,035,282.96 = 216,759.84 : x
  2. Step 2: Convert to fraction form
    690,118.98/1,035,282.96 = 216,759.84/x
  3. Step 3: Cross multiply
    690,118.98x = 1,035,282.96 × 216,759.84
  4. Step 4: Simplify right side
    690,118.98x = 224,407,768,764.33
  5. Step 5: Solve for x
    x = 224,407,768,764.33/690,118.98
  6. Step 6: Final answer
    x = 325,172.58

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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.