Home / 1,317,658.32-1,976,487.48-320,377.68

Finding the Fourth Proportional to 1,317,658.32, 1,976,487.48 and 320,377.68

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Solution

The fourth proportional to 1,317,658.32, 1,976,487.48 and 320,377.68 is: 480,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,658.32 : 1,976,487.48 = 320,377.68 : x
  2. Step 2: Convert to fraction form
    1,317,658.32/1,976,487.48 = 320,377.68/x
  3. Step 3: Cross multiply
    1,317,658.32x = 1,976,487.48 × 320,377.68
  4. Step 4: Simplify right side
    1,317,658.32x = 633,222,473,391.45
  5. Step 5: Solve for x
    x = 633,222,473,391.45/1,317,658.32
  6. Step 6: Final answer
    x = 480,566.52

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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.