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Finding the Fourth Proportional to 1,038.58, 1,433.19 and 596.47

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Solution

The fourth proportional to 1,038.58, 1,433.19 and 596.47 is: 823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.58 : 1,433.19 = 596.47 : x
  2. Step 2: Convert to fraction form
    1,038.58/1,433.19 = 596.47/x
  3. Step 3: Cross multiply
    1,038.58x = 1,433.19 × 596.47
  4. Step 4: Simplify right side
    1,038.58x = 854,854.84
  5. Step 5: Solve for x
    x = 854,854.84/1,038.58
  6. Step 6: Final answer
    x = 823.10

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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.