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Finding the Fourth Proportional to 697.32, 959.31 and 603.36

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Solution

The fourth proportional to 697.32, 959.31 and 603.36 is: 830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.32 : 959.31 = 603.36 : x
  2. Step 2: Convert to fraction form
    697.32/959.31 = 603.36/x
  3. Step 3: Cross multiply
    697.32x = 959.31 × 603.36
  4. Step 4: Simplify right side
    697.32x = 578,809.28
  5. Step 5: Solve for x
    x = 578,809.28/697.32
  6. Step 6: Final answer
    x = 830.05

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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.