Home / 1,138,493.30-1,571,845.38-709,403.90

Finding the Fourth Proportional to 1,138,493.30, 1,571,845.38 and 709,403.90

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Solution

The fourth proportional to 1,138,493.30, 1,571,845.38 and 709,403.90 is: 979,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,493.30 : 1,571,845.38 = 709,403.90 : x
  2. Step 2: Convert to fraction form
    1,138,493.30/1,571,845.38 = 709,403.90/x
  3. Step 3: Cross multiply
    1,138,493.30x = 1,571,845.38 × 709,403.90
  4. Step 4: Simplify right side
    1,138,493.30x = 1,115,073,242,768.98
  5. Step 5: Solve for x
    x = 1,115,073,242,768.98/1,138,493.30
  6. Step 6: Final answer
    x = 979,428.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.