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Finding the Fourth Proportional to 664,337, 996,496.14 and 309,152.36

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Solution

The fourth proportional to 664,337, 996,496.14 and 309,152.36 is: 463,724.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,337 : 996,496.14 = 309,152.36 : x
  2. Step 2: Convert to fraction form
    664,337/996,496.14 = 309,152.36/x
  3. Step 3: Cross multiply
    664,337x = 996,496.14 × 309,152.36
  4. Step 4: Simplify right side
    664,337x = 308,069,133,411.89
  5. Step 5: Solve for x
    x = 308,069,133,411.89/664,337
  6. Step 6: Final answer
    x = 463,724.18

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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.