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Finding the Fourth Proportional to 1,017.30, 1,403.88 and 597.66

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Solution

The fourth proportional to 1,017.30, 1,403.88 and 597.66 is: 824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.30 : 1,403.88 = 597.66 : x
  2. Step 2: Convert to fraction form
    1,017.30/1,403.88 = 597.66/x
  3. Step 3: Cross multiply
    1,017.30x = 1,403.88 × 597.66
  4. Step 4: Simplify right side
    1,017.30x = 839,035.90
  5. Step 5: Solve for x
    x = 839,035.90/1,017.30
  6. Step 6: Final answer
    x = 824.77

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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.