Home / 746,852.87-1,120,279.98-320,111.76

Finding the Fourth Proportional to 746,852.87, 1,120,279.98 and 320,111.76

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Solution

The fourth proportional to 746,852.87, 1,120,279.98 and 320,111.76 is: 480,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,852.87 : 1,120,279.98 = 320,111.76 : x
  2. Step 2: Convert to fraction form
    746,852.87/1,120,279.98 = 320,111.76/x
  3. Step 3: Cross multiply
    746,852.87x = 1,120,279.98 × 320,111.76
  4. Step 4: Simplify right side
    746,852.87x = 358,614,801,492.03
  5. Step 5: Solve for x
    x = 358,614,801,492.03/746,852.87
  6. Step 6: Final answer
    x = 480,167.93

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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.