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Finding the Fourth Proportional to 614.45, 847.53 and 437.40

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Solution

The fourth proportional to 614.45, 847.53 and 437.40 is: 603.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.45 : 847.53 = 437.40 : x
  2. Step 2: Convert to fraction form
    614.45/847.53 = 437.40/x
  3. Step 3: Cross multiply
    614.45x = 847.53 × 437.40
  4. Step 4: Simplify right side
    614.45x = 370,709.62
  5. Step 5: Solve for x
    x = 370,709.62/614.45
  6. Step 6: Final answer
    x = 603.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.