Home / 729,907.11-1,007,286.93-407,617.52

Finding the Fourth Proportional to 729,907.11, 1,007,286.93 and 407,617.52

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Solution

The fourth proportional to 729,907.11, 1,007,286.93 and 407,617.52 is: 562,520.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,907.11 : 1,007,286.93 = 407,617.52 : x
  2. Step 2: Convert to fraction form
    729,907.11/1,007,286.93 = 407,617.52/x
  3. Step 3: Cross multiply
    729,907.11x = 1,007,286.93 × 407,617.52
  4. Step 4: Simplify right side
    729,907.11x = 410,587,795,298.58
  5. Step 5: Solve for x
    x = 410,587,795,298.58/729,907.11
  6. Step 6: Final answer
    x = 562,520.61

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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.