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Finding the Fourth Proportional to 404,670.60, 607,005.90 and 329,875.20

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Solution

The fourth proportional to 404,670.60, 607,005.90 and 329,875.20 is: 494,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,670.60 : 607,005.90 = 329,875.20 : x
  2. Step 2: Convert to fraction form
    404,670.60/607,005.90 = 329,875.20/x
  3. Step 3: Cross multiply
    404,670.60x = 607,005.90 × 329,875.20
  4. Step 4: Simplify right side
    404,670.60x = 200,236,192,663.68
  5. Step 5: Solve for x
    x = 200,236,192,663.68/404,670.60
  6. Step 6: Final answer
    x = 494,812.80

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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.