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Finding the Fourth Proportional to 2,842,266.78, 3,922,318.35 and 1,553,118.30

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Solution

The fourth proportional to 2,842,266.78, 3,922,318.35 and 1,553,118.30 is: 2,143,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842,266.78 : 3,922,318.35 = 1,553,118.30 : x
  2. Step 2: Convert to fraction form
    2,842,266.78/3,922,318.35 = 1,553,118.30/x
  3. Step 3: Cross multiply
    2,842,266.78x = 3,922,318.35 × 1,553,118.30
  4. Step 4: Simplify right side
    2,842,266.78x = 6,091,824,407,810.81
  5. Step 5: Solve for x
    x = 6,091,824,407,810.81/2,842,266.78
  6. Step 6: Final answer
    x = 2,143,297.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.