Home / 847,421.55-1,271,134.37-207,728.14

Finding the Fourth Proportional to 847,421.55, 1,271,134.37 and 207,728.14

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Solution

The fourth proportional to 847,421.55, 1,271,134.37 and 207,728.14 is: 311,592.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,421.55 : 1,271,134.37 = 207,728.14 : x
  2. Step 2: Convert to fraction form
    847,421.55/1,271,134.37 = 207,728.14/x
  3. Step 3: Cross multiply
    847,421.55x = 1,271,134.37 × 207,728.14
  4. Step 4: Simplify right side
    847,421.55x = 264,050,378,370.17
  5. Step 5: Solve for x
    x = 264,050,378,370.17/847,421.55
  6. Step 6: Final answer
    x = 311,592.71

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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.