Home / 756,668.79-1,134,438.21-457,081.38

Finding the Fourth Proportional to 756,668.79, 1,134,438.21 and 457,081.38

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Solution

The fourth proportional to 756,668.79, 1,134,438.21 and 457,081.38 is: 685,280.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,668.79 : 1,134,438.21 = 457,081.38 : x
  2. Step 2: Convert to fraction form
    756,668.79/1,134,438.21 = 457,081.38/x
  3. Step 3: Cross multiply
    756,668.79x = 1,134,438.21 × 457,081.38
  4. Step 4: Simplify right side
    756,668.79x = 518,530,582,551.53
  5. Step 5: Solve for x
    x = 518,530,582,551.53/756,668.79
  6. Step 6: Final answer
    x = 685,280.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.