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Finding the Fourth Proportional to 488,485.80, 732,858.30 and 172,909.80

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Solution

The fourth proportional to 488,485.80, 732,858.30 and 172,909.80 is: 259,410.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,485.80 : 732,858.30 = 172,909.80 : x
  2. Step 2: Convert to fraction form
    488,485.80/732,858.30 = 172,909.80/x
  3. Step 3: Cross multiply
    488,485.80x = 732,858.30 × 172,909.80
  4. Step 4: Simplify right side
    488,485.80x = 126,718,382,081.34
  5. Step 5: Solve for x
    x = 126,718,382,081.34/488,485.80
  6. Step 6: Final answer
    x = 259,410.57

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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.