Home / 499,721.72-689,613.81-270,279.23

Finding the Fourth Proportional to 499,721.72, 689,613.81 and 270,279.23

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Solution

The fourth proportional to 499,721.72, 689,613.81 and 270,279.23 is: 372,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,721.72 : 689,613.81 = 270,279.23 : x
  2. Step 2: Convert to fraction form
    499,721.72/689,613.81 = 270,279.23/x
  3. Step 3: Cross multiply
    499,721.72x = 689,613.81 × 270,279.23
  4. Step 4: Simplify right side
    499,721.72x = 186,388,289,564.17
  5. Step 5: Solve for x
    x = 186,388,289,564.17/499,721.72
  6. Step 6: Final answer
    x = 372,984.17

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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.