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Finding the Fourth Proportional to 404,657.10, 606,985.65 and 329,861.70

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Solution

The fourth proportional to 404,657.10, 606,985.65 and 329,861.70 is: 494,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,657.10 : 606,985.65 = 329,861.70 : x
  2. Step 2: Convert to fraction form
    404,657.10/606,985.65 = 329,861.70/x
  3. Step 3: Cross multiply
    404,657.10x = 606,985.65 × 329,861.70
  4. Step 4: Simplify right side
    404,657.10x = 200,221,318,384.61
  5. Step 5: Solve for x
    x = 200,221,318,384.61/404,657.10
  6. Step 6: Final answer
    x = 494,792.55

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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.