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Finding the Fourth Proportional to 432,946.17, 649,144.18 and 379,745

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Solution

The fourth proportional to 432,946.17, 649,144.18 and 379,745 is: 569,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,946.17 : 649,144.18 = 379,745 : x
  2. Step 2: Convert to fraction form
    432,946.17/649,144.18 = 379,745/x
  3. Step 3: Cross multiply
    432,946.17x = 649,144.18 × 379,745
  4. Step 4: Simplify right side
    432,946.17x = 246,509,254,735.38
  5. Step 5: Solve for x
    x = 246,509,254,735.38/432,946.17
  6. Step 6: Final answer
    x = 569,376.22

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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.