Home / 1,025,990.13-1,538,155.05-427,400.94

Finding the Fourth Proportional to 1,025,990.13, 1,538,155.05 and 427,400.94

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Solution

The fourth proportional to 1,025,990.13, 1,538,155.05 and 427,400.94 is: 640,755.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,990.13 : 1,538,155.05 = 427,400.94 : x
  2. Step 2: Convert to fraction form
    1,025,990.13/1,538,155.05 = 427,400.94/x
  3. Step 3: Cross multiply
    1,025,990.13x = 1,538,155.05 × 427,400.94
  4. Step 4: Simplify right side
    1,025,990.13x = 657,408,914,235.75
  5. Step 5: Solve for x
    x = 657,408,914,235.75/1,025,990.13
  6. Step 6: Final answer
    x = 640,755.59

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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.