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Finding the Fourth Proportional to 617,442.01, 852,105.68 and 345,507.53

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Solution

The fourth proportional to 617,442.01, 852,105.68 and 345,507.53 is: 476,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,442.01 : 852,105.68 = 345,507.53 : x
  2. Step 2: Convert to fraction form
    617,442.01/852,105.68 = 345,507.53/x
  3. Step 3: Cross multiply
    617,442.01x = 852,105.68 × 345,507.53
  4. Step 4: Simplify right side
    617,442.01x = 294,408,924,103.36
  5. Step 5: Solve for x
    x = 294,408,924,103.36/617,442.01
  6. Step 6: Final answer
    x = 476,820.37

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1.5x scale

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.