Home / 945,581.49-1,304,876.70-515,861.55

Finding the Fourth Proportional to 945,581.49, 1,304,876.70 and 515,861.55

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Solution

The fourth proportional to 945,581.49, 1,304,876.70 and 515,861.55 is: 711,874.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,581.49 : 1,304,876.70 = 515,861.55 : x
  2. Step 2: Convert to fraction form
    945,581.49/1,304,876.70 = 515,861.55/x
  3. Step 3: Cross multiply
    945,581.49x = 1,304,876.70 × 515,861.55
  4. Step 4: Simplify right side
    945,581.49x = 673,135,717,020.89
  5. Step 5: Solve for x
    x = 673,135,717,020.89/945,581.49
  6. Step 6: Final answer
    x = 711,874.89

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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.