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Finding the Fourth Proportional to 488,661.60, 732,992.40 and 404,680.80

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Solution

The fourth proportional to 488,661.60, 732,992.40 and 404,680.80 is: 607,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,661.60 : 732,992.40 = 404,680.80 : x
  2. Step 2: Convert to fraction form
    488,661.60/732,992.40 = 404,680.80/x
  3. Step 3: Cross multiply
    488,661.60x = 732,992.40 × 404,680.80
  4. Step 4: Simplify right side
    488,661.60x = 296,627,950,825.92
  5. Step 5: Solve for x
    x = 296,627,950,825.92/488,661.60
  6. Step 6: Final answer
    x = 607,021.20

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Similar ratio
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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.