Home / 727,437.72-1,003,895.34-405,147.96

Finding the Fourth Proportional to 727,437.72, 1,003,895.34 and 405,147.96

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Solution

The fourth proportional to 727,437.72, 1,003,895.34 and 405,147.96 is: 559,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,437.72 : 1,003,895.34 = 405,147.96 : x
  2. Step 2: Convert to fraction form
    727,437.72/1,003,895.34 = 405,147.96/x
  3. Step 3: Cross multiply
    727,437.72x = 1,003,895.34 × 405,147.96
  4. Step 4: Simplify right side
    727,437.72x = 406,726,149,054.51
  5. Step 5: Solve for x
    x = 406,726,149,054.51/727,437.72
  6. Step 6: Final answer
    x = 559,121.61

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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.