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Finding the Fourth Proportional to 695.61, 959.81 and 603.07

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Solution

The fourth proportional to 695.61, 959.81 and 603.07 is: 832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.61 : 959.81 = 603.07 : x
  2. Step 2: Convert to fraction form
    695.61/959.81 = 603.07/x
  3. Step 3: Cross multiply
    695.61x = 959.81 × 603.07
  4. Step 4: Simplify right side
    695.61x = 578,827.20
  5. Step 5: Solve for x
    x = 578,827.20/695.61
  6. Step 6: Final answer
    x = 832.11

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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.