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Finding the Fourth Proportional to 341,606.70, 512,410.05 and 315,945.90

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Solution

The fourth proportional to 341,606.70, 512,410.05 and 315,945.90 is: 473,918.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,606.70 : 512,410.05 = 315,945.90 : x
  2. Step 2: Convert to fraction form
    341,606.70/512,410.05 = 315,945.90/x
  3. Step 3: Cross multiply
    341,606.70x = 512,410.05 × 315,945.90
  4. Step 4: Simplify right side
    341,606.70x = 161,893,854,416.30
  5. Step 5: Solve for x
    x = 161,893,854,416.30/341,606.70
  6. Step 6: Final answer
    x = 473,918.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.