Home / 670,010.40-1,005,145.20-196,711.20

Finding the Fourth Proportional to 670,010.40, 1,005,145.20 and 196,711.20

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Solution

The fourth proportional to 670,010.40, 1,005,145.20 and 196,711.20 is: 295,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,010.40 : 1,005,145.20 = 196,711.20 : x
  2. Step 2: Convert to fraction form
    670,010.40/1,005,145.20 = 196,711.20/x
  3. Step 3: Cross multiply
    670,010.40x = 1,005,145.20 × 196,711.20
  4. Step 4: Simplify right side
    670,010.40x = 197,723,318,466.24
  5. Step 5: Solve for x
    x = 197,723,318,466.24/670,010.40
  6. Step 6: Final answer
    x = 295,104.85

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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.