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Finding the Fourth Proportional to 710,954.45, 981,128.81 and 424,499.57

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Solution

The fourth proportional to 710,954.45, 981,128.81 and 424,499.57 is: 585,816.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,954.45 : 981,128.81 = 424,499.57 : x
  2. Step 2: Convert to fraction form
    710,954.45/981,128.81 = 424,499.57/x
  3. Step 3: Cross multiply
    710,954.45x = 981,128.81 × 424,499.57
  4. Step 4: Simplify right side
    710,954.45x = 416,488,755,837.11
  5. Step 5: Solve for x
    x = 416,488,755,837.11/710,954.45
  6. Step 6: Final answer
    x = 585,816.37

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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.