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Finding the Fourth Proportional to 707.86, 1,060.88 and 296.89

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Solution

The fourth proportional to 707.86, 1,060.88 and 296.89 is: 444.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.86 : 1,060.88 = 296.89 : x
  2. Step 2: Convert to fraction form
    707.86/1,060.88 = 296.89/x
  3. Step 3: Cross multiply
    707.86x = 1,060.88 × 296.89
  4. Step 4: Simplify right side
    707.86x = 314,964.66
  5. Step 5: Solve for x
    x = 314,964.66/707.86
  6. Step 6: Final answer
    x = 444.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.