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Finding the Fourth Proportional to 659,660, 910,331.08 and 373,174

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Solution

The fourth proportional to 659,660, 910,331.08 and 373,174 is: 514,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,660 : 910,331.08 = 373,174 : x
  2. Step 2: Convert to fraction form
    659,660/910,331.08 = 373,174/x
  3. Step 3: Cross multiply
    659,660x = 910,331.08 × 373,174
  4. Step 4: Simplify right side
    659,660x = 339,711,890,447.92
  5. Step 5: Solve for x
    x = 339,711,890,447.92/659,660
  6. Step 6: Final answer
    x = 514,980.28

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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.