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Finding the Fourth Proportional to 578,163.61, 797,866.77 and 323,515

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Solution

The fourth proportional to 578,163.61, 797,866.77 and 323,515 is: 446,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,163.61 : 797,866.77 = 323,515 : x
  2. Step 2: Convert to fraction form
    578,163.61/797,866.77 = 323,515/x
  3. Step 3: Cross multiply
    578,163.61x = 797,866.77 × 323,515
  4. Step 4: Simplify right side
    578,163.61x = 258,121,868,096.55
  5. Step 5: Solve for x
    x = 258,121,868,096.55/578,163.61
  6. Step 6: Final answer
    x = 446,451.25

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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.