Home / 2,800,659.40-4,200,989.10-907,592.20

Finding the Fourth Proportional to 2,800,659.40, 4,200,989.10 and 907,592.20

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Solution

The fourth proportional to 2,800,659.40, 4,200,989.10 and 907,592.20 is: 1,361,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,659.40 : 4,200,989.10 = 907,592.20 : x
  2. Step 2: Convert to fraction form
    2,800,659.40/4,200,989.10 = 907,592.20/x
  3. Step 3: Cross multiply
    2,800,659.40x = 4,200,989.10 × 907,592.20
  4. Step 4: Simplify right side
    2,800,659.40x = 3,812,784,939,445.02
  5. Step 5: Solve for x
    x = 3,812,784,939,445.02/2,800,659.40
  6. Step 6: Final answer
    x = 1,361,388.30

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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.