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Finding the Fourth Proportional to 1,136.32, 1,705.40 and 588.66

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Solution

The fourth proportional to 1,136.32, 1,705.40 and 588.66 is: 883.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.32 : 1,705.40 = 588.66 : x
  2. Step 2: Convert to fraction form
    1,136.32/1,705.40 = 588.66/x
  3. Step 3: Cross multiply
    1,136.32x = 1,705.40 × 588.66
  4. Step 4: Simplify right side
    1,136.32x = 1,003,900.76
  5. Step 5: Solve for x
    x = 1,003,900.76/1,136.32
  6. Step 6: Final answer
    x = 883.47

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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.