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Finding the Fourth Proportional to 697.30, 961.32 and 510.46

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Solution

The fourth proportional to 697.30, 961.32 and 510.46 is: 703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.30 : 961.32 = 510.46 : x
  2. Step 2: Convert to fraction form
    697.30/961.32 = 510.46/x
  3. Step 3: Cross multiply
    697.30x = 961.32 × 510.46
  4. Step 4: Simplify right side
    697.30x = 490,715.41
  5. Step 5: Solve for x
    x = 490,715.41/697.30
  6. Step 6: Final answer
    x = 703.74

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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.