Home / 382,756.20-574,134.30-311,897.40

Finding the Fourth Proportional to 382,756.20, 574,134.30 and 311,897.40

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Solution

The fourth proportional to 382,756.20, 574,134.30 and 311,897.40 is: 467,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,756.20 : 574,134.30 = 311,897.40 : x
  2. Step 2: Convert to fraction form
    382,756.20/574,134.30 = 311,897.40/x
  3. Step 3: Cross multiply
    382,756.20x = 574,134.30 × 311,897.40
  4. Step 4: Simplify right side
    382,756.20x = 179,070,995,420.82
  5. Step 5: Solve for x
    x = 179,070,995,420.82/382,756.20
  6. Step 6: Final answer
    x = 467,846.10

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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.