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Finding the Fourth Proportional to 576,577.99, 864,870.05 and 378,154.90

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Solution

The fourth proportional to 576,577.99, 864,870.05 and 378,154.90 is: 567,234.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,577.99 : 864,870.05 = 378,154.90 : x
  2. Step 2: Convert to fraction form
    576,577.99/864,870.05 = 378,154.90/x
  3. Step 3: Cross multiply
    576,577.99x = 864,870.05 × 378,154.90
  4. Step 4: Simplify right side
    576,577.99x = 327,054,847,270.75
  5. Step 5: Solve for x
    x = 327,054,847,270.75/576,577.99
  6. Step 6: Final answer
    x = 567,234.36

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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.