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Finding the Fourth Proportional to 526,572.80, 788,692.80 and 210,867.20

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Solution

The fourth proportional to 526,572.80, 788,692.80 and 210,867.20 is: 315,833.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,572.80 : 788,692.80 = 210,867.20 : x
  2. Step 2: Convert to fraction form
    526,572.80/788,692.80 = 210,867.20/x
  3. Step 3: Cross multiply
    526,572.80x = 788,692.80 × 210,867.20
  4. Step 4: Simplify right side
    526,572.80x = 166,309,442,396.16
  5. Step 5: Solve for x
    x = 166,309,442,396.16/526,572.80
  6. Step 6: Final answer
    x = 315,833.71

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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.