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Finding the Fourth Proportional to 404,647.60, 606,971.40 and 329,852.20

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Solution

The fourth proportional to 404,647.60, 606,971.40 and 329,852.20 is: 494,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,647.60 : 606,971.40 = 329,852.20 : x
  2. Step 2: Convert to fraction form
    404,647.60/606,971.40 = 329,852.20/x
  3. Step 3: Cross multiply
    404,647.60x = 606,971.40 × 329,852.20
  4. Step 4: Simplify right side
    404,647.60x = 200,210,851,627.08
  5. Step 5: Solve for x
    x = 200,210,851,627.08/404,647.60
  6. Step 6: Final answer
    x = 494,778.30

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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.