Home / 746,574.30-1,120,005.45-320,103.90

Finding the Fourth Proportional to 746,574.30, 1,120,005.45 and 320,103.90

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Solution

The fourth proportional to 746,574.30, 1,120,005.45 and 320,103.90 is: 480,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,574.30 : 1,120,005.45 = 320,103.90 : x
  2. Step 2: Convert to fraction form
    746,574.30/1,120,005.45 = 320,103.90/x
  3. Step 3: Cross multiply
    746,574.30x = 1,120,005.45 × 320,103.90
  4. Step 4: Simplify right side
    746,574.30x = 358,518,112,566.26
  5. Step 5: Solve for x
    x = 358,518,112,566.26/746,574.30
  6. Step 6: Final answer
    x = 480,217.59

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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.