Home / 727,765.94-1,004,314.46-405,479.90

Finding the Fourth Proportional to 727,765.94, 1,004,314.46 and 405,479.90

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Solution

The fourth proportional to 727,765.94, 1,004,314.46 and 405,479.90 is: 559,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,765.94 : 1,004,314.46 = 405,479.90 : x
  2. Step 2: Convert to fraction form
    727,765.94/1,004,314.46 = 405,479.90/x
  3. Step 3: Cross multiply
    727,765.94x = 1,004,314.46 × 405,479.90
  4. Step 4: Simplify right side
    727,765.94x = 407,229,326,809.35
  5. Step 5: Solve for x
    x = 407,229,326,809.35/727,765.94
  6. Step 6: Final answer
    x = 559,560.85

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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.