Home / 738,493.20-1,107,723.60-205,999.20

Finding the Fourth Proportional to 738,493.20, 1,107,723.60 and 205,999.20

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Solution

The fourth proportional to 738,493.20, 1,107,723.60 and 205,999.20 is: 308,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,493.20 : 1,107,723.60 = 205,999.20 : x
  2. Step 2: Convert to fraction form
    738,493.20/1,107,723.60 = 205,999.20/x
  3. Step 3: Cross multiply
    738,493.20x = 1,107,723.60 × 205,999.20
  4. Step 4: Simplify right side
    738,493.20x = 228,190,175,421.12
  5. Step 5: Solve for x
    x = 228,190,175,421.12/738,493.20
  6. Step 6: Final answer
    x = 308,994.28

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Double scale
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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.