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Finding the Fourth Proportional to 617,819.26, 852,337.20 and 375,907.90

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Solution

The fourth proportional to 617,819.26, 852,337.20 and 375,907.90 is: 518,598.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,819.26 : 852,337.20 = 375,907.90 : x
  2. Step 2: Convert to fraction form
    617,819.26/852,337.20 = 375,907.90/x
  3. Step 3: Cross multiply
    617,819.26x = 852,337.20 × 375,907.90
  4. Step 4: Simplify right side
    617,819.26x = 320,400,286,943.88
  5. Step 5: Solve for x
    x = 320,400,286,943.88/617,819.26
  6. Step 6: Final answer
    x = 518,598.74

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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.