Home / 2,702,979.28-4,054,468.80-1,243,878.40

Finding the Fourth Proportional to 2,702,979.28, 4,054,468.80 and 1,243,878.40

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Solution

The fourth proportional to 2,702,979.28, 4,054,468.80 and 1,243,878.40 is: 1,865,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702,979.28 : 4,054,468.80 = 1,243,878.40 : x
  2. Step 2: Convert to fraction form
    2,702,979.28/4,054,468.80 = 1,243,878.40/x
  3. Step 3: Cross multiply
    2,702,979.28x = 4,054,468.80 × 1,243,878.40
  4. Step 4: Simplify right side
    2,702,979.28x = 5,043,266,163,793.92
  5. Step 5: Solve for x
    x = 5,043,266,163,793.92/2,702,979.28
  6. Step 6: Final answer
    x = 1,865,817.54

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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.