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Finding the Fourth Proportional to 1,038.29, 1,432.78 and 596.16

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Solution

The fourth proportional to 1,038.29, 1,432.78 and 596.16 is: 822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.29 : 1,432.78 = 596.16 : x
  2. Step 2: Convert to fraction form
    1,038.29/1,432.78 = 596.16/x
  3. Step 3: Cross multiply
    1,038.29x = 1,432.78 × 596.16
  4. Step 4: Simplify right side
    1,038.29x = 854,166.12
  5. Step 5: Solve for x
    x = 854,166.12/1,038.29
  6. Step 6: Final answer
    x = 822.67

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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.