Home / 654,342-981,743.40-322,151.28

Finding the Fourth Proportional to 654,342, 981,743.40 and 322,151.28

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Solution

The fourth proportional to 654,342, 981,743.40 and 322,151.28 is: 483,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,342 : 981,743.40 = 322,151.28 : x
  2. Step 2: Convert to fraction form
    654,342/981,743.40 = 322,151.28/x
  3. Step 3: Cross multiply
    654,342x = 981,743.40 × 322,151.28
  4. Step 4: Simplify right side
    654,342x = 316,269,892,941.55
  5. Step 5: Solve for x
    x = 316,269,892,941.55/654,342
  6. Step 6: Final answer
    x = 483,340.35

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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.