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Finding the Fourth Proportional to 486,808.89, 671,795.37 and 293,328.63

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Solution

The fourth proportional to 486,808.89, 671,795.37 and 293,328.63 is: 404,792.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,808.89 : 671,795.37 = 293,328.63 : x
  2. Step 2: Convert to fraction form
    486,808.89/671,795.37 = 293,328.63/x
  3. Step 3: Cross multiply
    486,808.89x = 671,795.37 × 293,328.63
  4. Step 4: Simplify right side
    486,808.89x = 197,056,815,522.44
  5. Step 5: Solve for x
    x = 197,056,815,522.44/486,808.89
  6. Step 6: Final answer
    x = 404,792.97

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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.