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Finding the Fourth Proportional to 612,795.30, 845,657.48 and 344,523.30

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Solution

The fourth proportional to 612,795.30, 845,657.48 and 344,523.30 is: 475,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,795.30 : 845,657.48 = 344,523.30 : x
  2. Step 2: Convert to fraction form
    612,795.30/845,657.48 = 344,523.30/x
  3. Step 3: Cross multiply
    612,795.30x = 845,657.48 × 344,523.30
  4. Step 4: Simplify right side
    612,795.30x = 291,348,705,679.28
  5. Step 5: Solve for x
    x = 291,348,705,679.28/612,795.30
  6. Step 6: Final answer
    x = 475,442.13

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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.