Home / 938,860.39-1,407,668.44-339,743.62

Finding the Fourth Proportional to 938,860.39, 1,407,668.44 and 339,743.62

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Solution

The fourth proportional to 938,860.39, 1,407,668.44 and 339,743.62 is: 509,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,860.39 : 1,407,668.44 = 339,743.62 : x
  2. Step 2: Convert to fraction form
    938,860.39/1,407,668.44 = 339,743.62/x
  3. Step 3: Cross multiply
    938,860.39x = 1,407,668.44 × 339,743.62
  4. Step 4: Simplify right side
    938,860.39x = 478,246,371,565.35
  5. Step 5: Solve for x
    x = 478,246,371,565.35/938,860.39
  6. Step 6: Final answer
    x = 509,390.30

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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.