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Finding the Fourth Proportional to 612,794.30, 845,656.10 and 344,522.30

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Solution

The fourth proportional to 612,794.30, 845,656.10 and 344,522.30 is: 475,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,794.30 : 845,656.10 = 344,522.30 : x
  2. Step 2: Convert to fraction form
    612,794.30/845,656.10 = 344,522.30/x
  3. Step 3: Cross multiply
    612,794.30x = 845,656.10 × 344,522.30
  4. Step 4: Simplify right side
    612,794.30x = 291,347,384,581.03
  5. Step 5: Solve for x
    x = 291,347,384,581.03/612,794.30
  6. Step 6: Final answer
    x = 475,440.75

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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.