Home / 787,050.57-1,086,129.66-447,518.82

Finding the Fourth Proportional to 787,050.57, 1,086,129.66 and 447,518.82

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Solution

The fourth proportional to 787,050.57, 1,086,129.66 and 447,518.82 is: 617,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,050.57 : 1,086,129.66 = 447,518.82 : x
  2. Step 2: Convert to fraction form
    787,050.57/1,086,129.66 = 447,518.82/x
  3. Step 3: Cross multiply
    787,050.57x = 1,086,129.66 × 447,518.82
  4. Step 4: Simplify right side
    787,050.57x = 486,063,467,044.09
  5. Step 5: Solve for x
    x = 486,063,467,044.09/787,050.57
  6. Step 6: Final answer
    x = 617,575.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.