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Finding the Fourth Proportional to 664,007.10, 996,529.05 and 309,065.10

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Solution

The fourth proportional to 664,007.10, 996,529.05 and 309,065.10 is: 463,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,007.10 : 996,529.05 = 309,065.10 : x
  2. Step 2: Convert to fraction form
    664,007.10/996,529.05 = 309,065.10/x
  3. Step 3: Cross multiply
    664,007.10x = 996,529.05 × 309,065.10
  4. Step 4: Simplify right side
    664,007.10x = 307,992,350,491.16
  5. Step 5: Solve for x
    x = 307,992,350,491.16/664,007.10
  6. Step 6: Final answer
    x = 463,838.94

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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.