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Finding the Fourth Proportional to 376,819.70, 565,229.55 and 341,390.30

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Solution

The fourth proportional to 376,819.70, 565,229.55 and 341,390.30 is: 512,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,819.70 : 565,229.55 = 341,390.30 : x
  2. Step 2: Convert to fraction form
    376,819.70/565,229.55 = 341,390.30/x
  3. Step 3: Cross multiply
    376,819.70x = 565,229.55 × 341,390.30
  4. Step 4: Simplify right side
    376,819.70x = 192,963,885,643.37
  5. Step 5: Solve for x
    x = 192,963,885,643.37/376,819.70
  6. Step 6: Final answer
    x = 512,085.45

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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.