Home / 727,422.87-1,003,874.58-405,132.96

Finding the Fourth Proportional to 727,422.87, 1,003,874.58 and 405,132.96

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Solution

The fourth proportional to 727,422.87, 1,003,874.58 and 405,132.96 is: 559,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,422.87 : 1,003,874.58 = 405,132.96 : x
  2. Step 2: Convert to fraction form
    727,422.87/1,003,874.58 = 405,132.96/x
  3. Step 3: Cross multiply
    727,422.87x = 1,003,874.58 × 405,132.96
  4. Step 4: Simplify right side
    727,422.87x = 406,702,680,064.16
  5. Step 5: Solve for x
    x = 406,702,680,064.16/727,422.87
  6. Step 6: Final answer
    x = 559,100.76

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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.