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Finding the Fourth Proportional to 559.02, 837.28 and 545.25

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Solution

The fourth proportional to 559.02, 837.28 and 545.25 is: 816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.02 : 837.28 = 545.25 : x
  2. Step 2: Convert to fraction form
    559.02/837.28 = 545.25/x
  3. Step 3: Cross multiply
    559.02x = 837.28 × 545.25
  4. Step 4: Simplify right side
    559.02x = 456,526.92
  5. Step 5: Solve for x
    x = 456,526.92/559.02
  6. Step 6: Final answer
    x = 816.66

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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.