Home / 1,131,078.43-1,696,602.71-278,157.44

Finding the Fourth Proportional to 1,131,078.43, 1,696,602.71 and 278,157.44

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Solution

The fourth proportional to 1,131,078.43, 1,696,602.71 and 278,157.44 is: 417,232.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,078.43 : 1,696,602.71 = 278,157.44 : x
  2. Step 2: Convert to fraction form
    1,131,078.43/1,696,602.71 = 278,157.44/x
  3. Step 3: Cross multiply
    1,131,078.43x = 1,696,602.71 × 278,157.44
  4. Step 4: Simplify right side
    1,131,078.43x = 471,922,671,447.56
  5. Step 5: Solve for x
    x = 471,922,671,447.56/1,131,078.43
  6. Step 6: Final answer
    x = 417,232.49

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Double scale
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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.