Home / 439,558.57-606,668.49-258,270.46

Finding the Fourth Proportional to 439,558.57, 606,668.49 and 258,270.46

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Solution

The fourth proportional to 439,558.57, 606,668.49 and 258,270.46 is: 356,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,558.57 : 606,668.49 = 258,270.46 : x
  2. Step 2: Convert to fraction form
    439,558.57/606,668.49 = 258,270.46/x
  3. Step 3: Cross multiply
    439,558.57x = 606,668.49 × 258,270.46
  4. Step 4: Simplify right side
    439,558.57x = 156,684,549,979.81
  5. Step 5: Solve for x
    x = 156,684,549,979.81/439,558.57
  6. Step 6: Final answer
    x = 356,458.87

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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.