Home / 787,056.34-1,086,132.74-447,524.62

Finding the Fourth Proportional to 787,056.34, 1,086,132.74 and 447,524.62

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Solution

The fourth proportional to 787,056.34, 1,086,132.74 and 447,524.62 is: 617,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,056.34 : 1,086,132.74 = 447,524.62 : x
  2. Step 2: Convert to fraction form
    787,056.34/1,086,132.74 = 447,524.62/x
  3. Step 3: Cross multiply
    787,056.34x = 1,086,132.74 × 447,524.62
  4. Step 4: Simplify right side
    787,056.34x = 486,071,141,738.06
  5. Step 5: Solve for x
    x = 486,071,141,738.06/787,056.34
  6. Step 6: Final answer
    x = 617,581.13

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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.