Home / 1,317,828.48-1,976,728.32-320,557.44

Finding the Fourth Proportional to 1,317,828.48, 1,976,728.32 and 320,557.44

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Solution

The fourth proportional to 1,317,828.48, 1,976,728.32 and 320,557.44 is: 480,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,828.48 : 1,976,728.32 = 320,557.44 : x
  2. Step 2: Convert to fraction form
    1,317,828.48/1,976,728.32 = 320,557.44/x
  3. Step 3: Cross multiply
    1,317,828.48x = 1,976,728.32 × 320,557.44
  4. Step 4: Simplify right side
    1,317,828.48x = 633,654,969,834.70
  5. Step 5: Solve for x
    x = 633,654,969,834.70/1,317,828.48
  6. Step 6: Final answer
    x = 480,832.66

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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.