Home / 749,694.42-1,034,575.20-405,530.64

Finding the Fourth Proportional to 749,694.42, 1,034,575.20 and 405,530.64

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Solution

The fourth proportional to 749,694.42, 1,034,575.20 and 405,530.64 is: 559,630.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,694.42 : 1,034,575.20 = 405,530.64 : x
  2. Step 2: Convert to fraction form
    749,694.42/1,034,575.20 = 405,530.64/x
  3. Step 3: Cross multiply
    749,694.42x = 1,034,575.20 × 405,530.64
  4. Step 4: Simplify right side
    749,694.42x = 419,551,942,984.13
  5. Step 5: Solve for x
    x = 419,551,942,984.13/749,694.42
  6. Step 6: Final answer
    x = 559,630.61

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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.