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Finding the Fourth Proportional to 2,819,797.20, 4,229,695.80 and 926,600.40

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Solution

The fourth proportional to 2,819,797.20, 4,229,695.80 and 926,600.40 is: 1,389,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,797.20 : 4,229,695.80 = 926,600.40 : x
  2. Step 2: Convert to fraction form
    2,819,797.20/4,229,695.80 = 926,600.40/x
  3. Step 3: Cross multiply
    2,819,797.20x = 4,229,695.80 × 926,600.40
  4. Step 4: Simplify right side
    2,819,797.20x = 3,919,237,820,158.32
  5. Step 5: Solve for x
    x = 3,919,237,820,158.32/2,819,797.20
  6. Step 6: Final answer
    x = 1,389,900.60

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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.