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Finding the Fourth Proportional to 398,717.43, 595,534.53 and 360,708.36

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Solution

The fourth proportional to 398,717.43, 595,534.53 and 360,708.36 is: 538,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,717.43 : 595,534.53 = 360,708.36 : x
  2. Step 2: Convert to fraction form
    398,717.43/595,534.53 = 360,708.36/x
  3. Step 3: Cross multiply
    398,717.43x = 595,534.53 × 360,708.36
  4. Step 4: Simplify right side
    398,717.43x = 214,814,283,639.67
  5. Step 5: Solve for x
    x = 214,814,283,639.67/398,717.43
  6. Step 6: Final answer
    x = 538,763.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.