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Finding the Fourth Proportional to 673,902.96, 929,961.60 and 372,090.48

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Solution

The fourth proportional to 673,902.96, 929,961.60 and 372,090.48 is: 513,471.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,902.96 : 929,961.60 = 372,090.48 : x
  2. Step 2: Convert to fraction form
    673,902.96/929,961.60 = 372,090.48/x
  3. Step 3: Cross multiply
    673,902.96x = 929,961.60 × 372,090.48
  4. Step 4: Simplify right side
    673,902.96x = 346,029,858,125.57
  5. Step 5: Solve for x
    x = 346,029,858,125.57/673,902.96
  6. Step 6: Final answer
    x = 513,471.34

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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.