Home / 727,863.66-1,004,438.28-405,566.88

Finding the Fourth Proportional to 727,863.66, 1,004,438.28 and 405,566.88

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Solution

The fourth proportional to 727,863.66, 1,004,438.28 and 405,566.88 is: 559,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,863.66 : 1,004,438.28 = 405,566.88 : x
  2. Step 2: Convert to fraction form
    727,863.66/1,004,438.28 = 405,566.88/x
  3. Step 3: Cross multiply
    727,863.66x = 1,004,438.28 × 405,566.88
  4. Step 4: Simplify right side
    727,863.66x = 407,366,899,372.17
  5. Step 5: Solve for x
    x = 407,366,899,372.17/727,863.66
  6. Step 6: Final answer
    x = 559,674.73

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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.