Home / 787,056.72-1,086,133.20-447,524.94

Finding the Fourth Proportional to 787,056.72, 1,086,133.20 and 447,524.94

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Solution

The fourth proportional to 787,056.72, 1,086,133.20 and 447,524.94 is: 617,581.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,056.72 : 1,086,133.20 = 447,524.94 : x
  2. Step 2: Convert to fraction form
    787,056.72/1,086,133.20 = 447,524.94/x
  3. Step 3: Cross multiply
    787,056.72x = 1,086,133.20 × 447,524.94
  4. Step 4: Simplify right side
    787,056.72x = 486,071,695,162.01
  5. Step 5: Solve for x
    x = 486,071,695,162.01/787,056.72
  6. Step 6: Final answer
    x = 617,581.53

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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.