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Finding the Fourth Proportional to 603.75, 901.06 and 545.43

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Solution

The fourth proportional to 603.75, 901.06 and 545.43 is: 814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.75 : 901.06 = 545.43 : x
  2. Step 2: Convert to fraction form
    603.75/901.06 = 545.43/x
  3. Step 3: Cross multiply
    603.75x = 901.06 × 545.43
  4. Step 4: Simplify right side
    603.75x = 491,465.16
  5. Step 5: Solve for x
    x = 491,465.16/603.75
  6. Step 6: Final answer
    x = 814.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.