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Finding the Fourth Proportional to 576,579, 864,871.54 and 378,155.90

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Solution

The fourth proportional to 576,579, 864,871.54 and 378,155.90 is: 567,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,579 : 864,871.54 = 378,155.90 : x
  2. Step 2: Convert to fraction form
    576,579/864,871.54 = 378,155.90/x
  3. Step 3: Cross multiply
    576,579x = 864,871.54 × 378,155.90
  4. Step 4: Simplify right side
    576,579x = 327,056,275,593.09
  5. Step 5: Solve for x
    x = 327,056,275,593.09/576,579
  6. Step 6: Final answer
    x = 567,235.84

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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.