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Finding the Fourth Proportional to 518,832, 777,240.96 and 340,798.80

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Solution

The fourth proportional to 518,832, 777,240.96 and 340,798.80 is: 510,536.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,832 : 777,240.96 = 340,798.80 : x
  2. Step 2: Convert to fraction form
    518,832/777,240.96 = 340,798.80/x
  3. Step 3: Cross multiply
    518,832x = 777,240.96 × 340,798.80
  4. Step 4: Simplify right side
    518,832x = 264,882,786,478.85
  5. Step 5: Solve for x
    x = 264,882,786,478.85/518,832
  6. Step 6: Final answer
    x = 510,536.72

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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.