Home / 1,326,503.38-1,990,039.39-427,996.50

Finding the Fourth Proportional to 1,326,503.38, 1,990,039.39 and 427,996.50

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Solution

The fourth proportional to 1,326,503.38, 1,990,039.39 and 427,996.50 is: 642,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,503.38 : 1,990,039.39 = 427,996.50 : x
  2. Step 2: Convert to fraction form
    1,326,503.38/1,990,039.39 = 427,996.50/x
  3. Step 3: Cross multiply
    1,326,503.38x = 1,990,039.39 × 427,996.50
  4. Step 4: Simplify right side
    1,326,503.38x = 851,729,893,782.14
  5. Step 5: Solve for x
    x = 851,729,893,782.14/1,326,503.38
  6. Step 6: Final answer
    x = 642,086.49

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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.