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Finding the Fourth Proportional to 662,502.80, 993,677.40 and 189,261.20

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Solution

The fourth proportional to 662,502.80, 993,677.40 and 189,261.20 is: 283,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,502.80 : 993,677.40 = 189,261.20 : x
  2. Step 2: Convert to fraction form
    662,502.80/993,677.40 = 189,261.20/x
  3. Step 3: Cross multiply
    662,502.80x = 993,677.40 × 189,261.20
  4. Step 4: Simplify right side
    662,502.80x = 188,064,577,136.88
  5. Step 5: Solve for x
    x = 188,064,577,136.88/662,502.80
  6. Step 6: Final answer
    x = 283,869.86

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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.