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Finding the Fourth Proportional to 665,650.59, 918,492.26 and 379,176.27

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Solution

The fourth proportional to 665,650.59, 918,492.26 and 379,176.27 is: 523,203.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,650.59 : 918,492.26 = 379,176.27 : x
  2. Step 2: Convert to fraction form
    665,650.59/918,492.26 = 379,176.27/x
  3. Step 3: Cross multiply
    665,650.59x = 918,492.26 × 379,176.27
  4. Step 4: Simplify right side
    665,650.59x = 348,270,467,274.79
  5. Step 5: Solve for x
    x = 348,270,467,274.79/665,650.59
  6. Step 6: Final answer
    x = 523,203.12

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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.