Home / 727,092.54-1,003,128.03-421,001.87

Finding the Fourth Proportional to 727,092.54, 1,003,128.03 and 421,001.87

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Solution

The fourth proportional to 727,092.54, 1,003,128.03 and 421,001.87 is: 580,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,092.54 : 1,003,128.03 = 421,001.87 : x
  2. Step 2: Convert to fraction form
    727,092.54/1,003,128.03 = 421,001.87/x
  3. Step 3: Cross multiply
    727,092.54x = 1,003,128.03 × 421,001.87
  4. Step 4: Simplify right side
    727,092.54x = 422,318,771,463.78
  5. Step 5: Solve for x
    x = 422,318,771,463.78/727,092.54
  6. Step 6: Final answer
    x = 580,832.22

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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.