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Finding the Fourth Proportional to 576,087.45, 795,000.18 and 321,438.63

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Solution

The fourth proportional to 576,087.45, 795,000.18 and 321,438.63 is: 443,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,087.45 : 795,000.18 = 321,438.63 : x
  2. Step 2: Convert to fraction form
    576,087.45/795,000.18 = 321,438.63/x
  3. Step 3: Cross multiply
    576,087.45x = 795,000.18 × 321,438.63
  4. Step 4: Simplify right side
    576,087.45x = 255,543,768,708.95
  5. Step 5: Solve for x
    x = 255,543,768,708.95/576,087.45
  6. Step 6: Final answer
    x = 443,585.03

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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.