Home / 2,912,678.20-4,369,017.30-1,904,908.60

Finding the Fourth Proportional to 2,912,678.20, 4,369,017.30 and 1,904,908.60

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Solution

The fourth proportional to 2,912,678.20, 4,369,017.30 and 1,904,908.60 is: 2,857,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,678.20 : 4,369,017.30 = 1,904,908.60 : x
  2. Step 2: Convert to fraction form
    2,912,678.20/4,369,017.30 = 1,904,908.60/x
  3. Step 3: Cross multiply
    2,912,678.20x = 4,369,017.30 × 1,904,908.60
  4. Step 4: Simplify right side
    2,912,678.20x = 8,322,578,628,318.78
  5. Step 5: Solve for x
    x = 8,322,578,628,318.78/2,912,678.20
  6. Step 6: Final answer
    x = 2,857,362.90

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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.