Home / 938,891.76-1,407,984.07-339,704.79

Finding the Fourth Proportional to 938,891.76, 1,407,984.07 and 339,704.79

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Solution

The fourth proportional to 938,891.76, 1,407,984.07 and 339,704.79 is: 509,429.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,891.76 : 1,407,984.07 = 339,704.79 : x
  2. Step 2: Convert to fraction form
    938,891.76/1,407,984.07 = 339,704.79/x
  3. Step 3: Cross multiply
    938,891.76x = 1,407,984.07 × 339,704.79
  4. Step 4: Simplify right side
    938,891.76x = 478,298,932,822.70
  5. Step 5: Solve for x
    x = 478,298,932,822.70/938,891.76
  6. Step 6: Final answer
    x = 509,429.26

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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.