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Finding the Fourth Proportional to 513,410.15, 769,442.70 and 246,639.89

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Solution

The fourth proportional to 513,410.15, 769,442.70 and 246,639.89 is: 369,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,410.15 : 769,442.70 = 246,639.89 : x
  2. Step 2: Convert to fraction form
    513,410.15/769,442.70 = 246,639.89/x
  3. Step 3: Cross multiply
    513,410.15x = 769,442.70 × 246,639.89
  4. Step 4: Simplify right side
    513,410.15x = 189,775,262,889.30
  5. Step 5: Solve for x
    x = 189,775,262,889.30/513,410.15
  6. Step 6: Final answer
    x = 369,636.76

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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.