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Finding the Fourth Proportional to 595.42, 891.30 and 545.02

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Solution

The fourth proportional to 595.42, 891.30 and 545.02 is: 815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.42 : 891.30 = 545.02 : x
  2. Step 2: Convert to fraction form
    595.42/891.30 = 545.02/x
  3. Step 3: Cross multiply
    595.42x = 891.30 × 545.02
  4. Step 4: Simplify right side
    595.42x = 485,776.33
  5. Step 5: Solve for x
    x = 485,776.33/595.42
  6. Step 6: Final answer
    x = 815.85

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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.