Home / 938,859.39-1,407,666.94-339,742.62

Finding the Fourth Proportional to 938,859.39, 1,407,666.94 and 339,742.62

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Solution

The fourth proportional to 938,859.39, 1,407,666.94 and 339,742.62 is: 509,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,859.39 : 1,407,666.94 = 339,742.62 : x
  2. Step 2: Convert to fraction form
    938,859.39/1,407,666.94 = 339,742.62/x
  3. Step 3: Cross multiply
    938,859.39x = 1,407,666.94 × 339,742.62
  4. Step 4: Simplify right side
    938,859.39x = 478,244,453,433.63
  5. Step 5: Solve for x
    x = 478,244,453,433.63/938,859.39
  6. Step 6: Final answer
    x = 509,388.80

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1.5x scale

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.