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Finding the Fourth Proportional to 653,679.67, 902,168.74 and 367,221.55

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Solution

The fourth proportional to 653,679.67, 902,168.74 and 367,221.55 is: 506,816.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,679.67 : 902,168.74 = 367,221.55 : x
  2. Step 2: Convert to fraction form
    653,679.67/902,168.74 = 367,221.55/x
  3. Step 3: Cross multiply
    653,679.67x = 902,168.74 × 367,221.55
  4. Step 4: Simplify right side
    653,679.67x = 331,295,803,064.35
  5. Step 5: Solve for x
    x = 331,295,803,064.35/653,679.67
  6. Step 6: Final answer
    x = 506,816.75

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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.