Home / 727,840.96-1,004,407.13-405,544.12

Finding the Fourth Proportional to 727,840.96, 1,004,407.13 and 405,544.12

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Solution

The fourth proportional to 727,840.96, 1,004,407.13 and 405,544.12 is: 559,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,840.96 : 1,004,407.13 = 405,544.12 : x
  2. Step 2: Convert to fraction form
    727,840.96/1,004,407.13 = 405,544.12/x
  3. Step 3: Cross multiply
    727,840.96x = 1,004,407.13 × 405,544.12
  4. Step 4: Simplify right side
    727,840.96x = 407,331,398,607.82
  5. Step 5: Solve for x
    x = 407,331,398,607.82/727,840.96
  6. Step 6: Final answer
    x = 559,643.42

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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.