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Finding the Fourth Proportional to 697.19, 1,039.73 and 595.13

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Solution

The fourth proportional to 697.19, 1,039.73 and 595.13 is: 887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.19 : 1,039.73 = 595.13 : x
  2. Step 2: Convert to fraction form
    697.19/1,039.73 = 595.13/x
  3. Step 3: Cross multiply
    697.19x = 1,039.73 × 595.13
  4. Step 4: Simplify right side
    697.19x = 618,766.34
  5. Step 5: Solve for x
    x = 618,766.34/697.19
  6. Step 6: Final answer
    x = 887.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.