Home / 901,617.21-1,244,231.73-519,668.60

Finding the Fourth Proportional to 901,617.21, 1,244,231.73 and 519,668.60

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Solution

The fourth proportional to 901,617.21, 1,244,231.73 and 519,668.60 is: 717,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,617.21 : 1,244,231.73 = 519,668.60 : x
  2. Step 2: Convert to fraction form
    901,617.21/1,244,231.73 = 519,668.60/x
  3. Step 3: Cross multiply
    901,617.21x = 1,244,231.73 × 519,668.60
  4. Step 4: Simplify right side
    901,617.21x = 646,588,154,983.52
  5. Step 5: Solve for x
    x = 646,588,154,983.52/901,617.21
  6. Step 6: Final answer
    x = 717,142.65

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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.