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Finding the Fourth Proportional to 404,998.10, 607,497.15 and 402,665.30

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Solution

The fourth proportional to 404,998.10, 607,497.15 and 402,665.30 is: 603,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,998.10 : 607,497.15 = 402,665.30 : x
  2. Step 2: Convert to fraction form
    404,998.10/607,497.15 = 402,665.30/x
  3. Step 3: Cross multiply
    404,998.10x = 607,497.15 × 402,665.30
  4. Step 4: Simplify right side
    404,998.10x = 244,618,022,153.90
  5. Step 5: Solve for x
    x = 244,618,022,153.90/404,998.10
  6. Step 6: Final answer
    x = 603,997.95

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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.