Home / 746,856.63-1,120,285.62-320,115.53

Finding the Fourth Proportional to 746,856.63, 1,120,285.62 and 320,115.53

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Solution

The fourth proportional to 746,856.63, 1,120,285.62 and 320,115.53 is: 480,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,856.63 : 1,120,285.62 = 320,115.53 : x
  2. Step 2: Convert to fraction form
    746,856.63/1,120,285.62 = 320,115.53/x
  3. Step 3: Cross multiply
    746,856.63x = 1,120,285.62 × 320,115.53
  4. Step 4: Simplify right side
    746,856.63x = 358,620,819,396.25
  5. Step 5: Solve for x
    x = 358,620,819,396.25/746,856.63
  6. Step 6: Final answer
    x = 480,173.58

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1.5x scale

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.