Home / 1,488,636.39-2,232,686.82-394,428.60

Finding the Fourth Proportional to 1,488,636.39, 2,232,686.82 and 394,428.60

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Solution

The fourth proportional to 1,488,636.39, 2,232,686.82 and 394,428.60 is: 591,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,636.39 : 2,232,686.82 = 394,428.60 : x
  2. Step 2: Convert to fraction form
    1,488,636.39/2,232,686.82 = 394,428.60/x
  3. Step 3: Cross multiply
    1,488,636.39x = 2,232,686.82 × 394,428.60
  4. Step 4: Simplify right side
    1,488,636.39x = 880,635,536,651.05
  5. Step 5: Solve for x
    x = 880,635,536,651.05/1,488,636.39
  6. Step 6: Final answer
    x = 591,571.95

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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.