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Finding the Fourth Proportional to 603.45, 907.20 and 514.35

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Solution

The fourth proportional to 603.45, 907.20 and 514.35 is: 773.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.45 : 907.20 = 514.35 : x
  2. Step 2: Convert to fraction form
    603.45/907.20 = 514.35/x
  3. Step 3: Cross multiply
    603.45x = 907.20 × 514.35
  4. Step 4: Simplify right side
    603.45x = 466,618.32
  5. Step 5: Solve for x
    x = 466,618.32/603.45
  6. Step 6: Final answer
    x = 773.25

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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.