Home / 727,091.54-1,003,126.62-421,000.82

Finding the Fourth Proportional to 727,091.54, 1,003,126.62 and 421,000.82

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Solution

The fourth proportional to 727,091.54, 1,003,126.62 and 421,000.82 is: 580,830.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,091.54 : 1,003,126.62 = 421,000.82 : x
  2. Step 2: Convert to fraction form
    727,091.54/1,003,126.62 = 421,000.82/x
  3. Step 3: Cross multiply
    727,091.54x = 1,003,126.62 × 421,000.82
  4. Step 4: Simplify right side
    727,091.54x = 422,317,129,583.83
  5. Step 5: Solve for x
    x = 422,317,129,583.83/727,091.54
  6. Step 6: Final answer
    x = 580,830.76

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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.