Home / 719,989.75-1,080,159.59-221,353.75

Finding the Fourth Proportional to 719,989.75, 1,080,159.59 and 221,353.75

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Solution

The fourth proportional to 719,989.75, 1,080,159.59 and 221,353.75 is: 332,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,989.75 : 1,080,159.59 = 221,353.75 : x
  2. Step 2: Convert to fraction form
    719,989.75/1,080,159.59 = 221,353.75/x
  3. Step 3: Cross multiply
    719,989.75x = 1,080,159.59 × 221,353.75
  4. Step 4: Simplify right side
    719,989.75x = 239,097,375,844.96
  5. Step 5: Solve for x
    x = 239,097,375,844.96/719,989.75
  6. Step 6: Final answer
    x = 332,084.42

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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.