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Finding the Fourth Proportional to 595.06, 891.38 and 478.88

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Solution

The fourth proportional to 595.06, 891.38 and 478.88 is: 717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.06 : 891.38 = 478.88 : x
  2. Step 2: Convert to fraction form
    595.06/891.38 = 478.88/x
  3. Step 3: Cross multiply
    595.06x = 891.38 × 478.88
  4. Step 4: Simplify right side
    595.06x = 426,864.05
  5. Step 5: Solve for x
    x = 426,864.05/595.06
  6. Step 6: Final answer
    x = 717.35

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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.