Home / 843,339.28-1,265,507.88-311,230.84

Finding the Fourth Proportional to 843,339.28, 1,265,507.88 and 311,230.84

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Solution

The fourth proportional to 843,339.28, 1,265,507.88 and 311,230.84 is: 467,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,339.28 : 1,265,507.88 = 311,230.84 : x
  2. Step 2: Convert to fraction form
    843,339.28/1,265,507.88 = 311,230.84/x
  3. Step 3: Cross multiply
    843,339.28x = 1,265,507.88 × 311,230.84
  4. Step 4: Simplify right side
    843,339.28x = 393,865,080,519.02
  5. Step 5: Solve for x
    x = 393,865,080,519.02/843,339.28
  6. Step 6: Final answer
    x = 467,030.40

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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.