Home / 727,391.21-1,003,831.00-405,101.32

Finding the Fourth Proportional to 727,391.21, 1,003,831.00 and 405,101.32

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Solution

The fourth proportional to 727,391.21, 1,003,831.00 and 405,101.32 is: 559,057.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,391.21 : 1,003,831.00 = 405,101.32 : x
  2. Step 2: Convert to fraction form
    727,391.21/1,003,831.00 = 405,101.32/x
  3. Step 3: Cross multiply
    727,391.21x = 1,003,831.00 × 405,101.32
  4. Step 4: Simplify right side
    727,391.21x = 406,653,259,634.59
  5. Step 5: Solve for x
    x = 406,653,259,634.59/727,391.21
  6. Step 6: Final answer
    x = 559,057.16

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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.