Home / 2,679,276.80-4,018,915.20-2,660,614.40

Finding the Fourth Proportional to 2,679,276.80, 4,018,915.20 and 2,660,614.40

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Solution

The fourth proportional to 2,679,276.80, 4,018,915.20 and 2,660,614.40 is: 3,990,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,276.80 : 4,018,915.20 = 2,660,614.40 : x
  2. Step 2: Convert to fraction form
    2,679,276.80/4,018,915.20 = 2,660,614.40/x
  3. Step 3: Cross multiply
    2,679,276.80x = 4,018,915.20 × 2,660,614.40
  4. Step 4: Simplify right side
    2,679,276.80x = 10,692,783,653,498.88
  5. Step 5: Solve for x
    x = 10,692,783,653,498.88/2,679,276.80
  6. Step 6: Final answer
    x = 3,990,921.60

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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.