Home / 2,140,015.20-3,210,022.80-719,599.20

Finding the Fourth Proportional to 2,140,015.20, 3,210,022.80 and 719,599.20

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Solution

The fourth proportional to 2,140,015.20, 3,210,022.80 and 719,599.20 is: 1,079,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,015.20 : 3,210,022.80 = 719,599.20 : x
  2. Step 2: Convert to fraction form
    2,140,015.20/3,210,022.80 = 719,599.20/x
  3. Step 3: Cross multiply
    2,140,015.20x = 3,210,022.80 × 719,599.20
  4. Step 4: Simplify right side
    2,140,015.20x = 2,309,929,838,861.76
  5. Step 5: Solve for x
    x = 2,309,929,838,861.76/2,140,015.20
  6. Step 6: Final answer
    x = 1,079,398.80

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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.