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Finding the Fourth Proportional to 673,725, 929,740.50 and 371,921.16

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Solution

The fourth proportional to 673,725, 929,740.50 and 371,921.16 is: 513,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,725 : 929,740.50 = 371,921.16 : x
  2. Step 2: Convert to fraction form
    673,725/929,740.50 = 371,921.16/x
  3. Step 3: Cross multiply
    673,725x = 929,740.50 × 371,921.16
  4. Step 4: Simplify right side
    673,725x = 345,790,165,258.98
  5. Step 5: Solve for x
    x = 345,790,165,258.98/673,725
  6. Step 6: Final answer
    x = 513,251.20

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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.