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Finding the Fourth Proportional to 788,999.60, 1,182,138.60 and 367,410.80

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Solution

The fourth proportional to 788,999.60, 1,182,138.60 and 367,410.80 is: 550,482.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,999.60 : 1,182,138.60 = 367,410.80 : x
  2. Step 2: Convert to fraction form
    788,999.60/1,182,138.60 = 367,410.80/x
  3. Step 3: Cross multiply
    788,999.60x = 1,182,138.60 × 367,410.80
  4. Step 4: Simplify right side
    788,999.60x = 434,330,488,736.88
  5. Step 5: Solve for x
    x = 434,330,488,736.88/788,999.60
  6. Step 6: Final answer
    x = 550,482.52

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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.