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Finding the Fourth Proportional to 653,679.54, 902,168.57 and 367,221.42

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Solution

The fourth proportional to 653,679.54, 902,168.57 and 367,221.42 is: 506,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,679.54 : 902,168.57 = 367,221.42 : x
  2. Step 2: Convert to fraction form
    653,679.54/902,168.57 = 367,221.42/x
  3. Step 3: Cross multiply
    653,679.54x = 902,168.57 × 367,221.42
  4. Step 4: Simplify right side
    653,679.54x = 331,295,621,518.66
  5. Step 5: Solve for x
    x = 331,295,621,518.66/653,679.54
  6. Step 6: Final answer
    x = 506,816.57

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1.5x scale

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.