Home / 719,974.50-1,080,136.71-221,338.50

Finding the Fourth Proportional to 719,974.50, 1,080,136.71 and 221,338.50

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Solution

The fourth proportional to 719,974.50, 1,080,136.71 and 221,338.50 is: 332,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,974.50 : 1,080,136.71 = 221,338.50 : x
  2. Step 2: Convert to fraction form
    719,974.50/1,080,136.71 = 221,338.50/x
  3. Step 3: Cross multiply
    719,974.50x = 1,080,136.71 × 221,338.50
  4. Step 4: Simplify right side
    719,974.50x = 239,075,839,186.34
  5. Step 5: Solve for x
    x = 239,075,839,186.34/719,974.50
  6. Step 6: Final answer
    x = 332,061.54

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Similar ratio
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1.5x scale

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.