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Finding the Fourth Proportional to 384,701.40, 577,052.10 and 379,452.60

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Solution

The fourth proportional to 384,701.40, 577,052.10 and 379,452.60 is: 569,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,701.40 : 577,052.10 = 379,452.60 : x
  2. Step 2: Convert to fraction form
    384,701.40/577,052.10 = 379,452.60/x
  3. Step 3: Cross multiply
    384,701.40x = 577,052.10 × 379,452.60
  4. Step 4: Simplify right side
    384,701.40x = 218,963,919,680.46
  5. Step 5: Solve for x
    x = 218,963,919,680.46/384,701.40
  6. Step 6: Final answer
    x = 569,178.90

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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.