Home / 519,849.72-717,093.18-312,974.10

Finding the Fourth Proportional to 519,849.72, 717,093.18 and 312,974.10

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Solution

The fourth proportional to 519,849.72, 717,093.18 and 312,974.10 is: 431,723.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,849.72 : 717,093.18 = 312,974.10 : x
  2. Step 2: Convert to fraction form
    519,849.72/717,093.18 = 312,974.10/x
  3. Step 3: Cross multiply
    519,849.72x = 717,093.18 × 312,974.10
  4. Step 4: Simplify right side
    519,849.72x = 224,431,592,626.64
  5. Step 5: Solve for x
    x = 224,431,592,626.64/519,849.72
  6. Step 6: Final answer
    x = 431,723.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.