Home / 721,716.60-1,082,834.10-301,121.40

Finding the Fourth Proportional to 721,716.60, 1,082,834.10 and 301,121.40

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Solution

The fourth proportional to 721,716.60, 1,082,834.10 and 301,121.40 is: 451,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,716.60 : 1,082,834.10 = 301,121.40 : x
  2. Step 2: Convert to fraction form
    721,716.60/1,082,834.10 = 301,121.40/x
  3. Step 3: Cross multiply
    721,716.60x = 1,082,834.10 × 301,121.40
  4. Step 4: Simplify right side
    721,716.60x = 326,064,520,159.74
  5. Step 5: Solve for x
    x = 326,064,520,159.74/721,716.60
  6. Step 6: Final answer
    x = 451,790.25

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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.