Home / 787,054.85-1,086,130.67-447,523.13

Finding the Fourth Proportional to 787,054.85, 1,086,130.67 and 447,523.13

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Solution

The fourth proportional to 787,054.85, 1,086,130.67 and 447,523.13 is: 617,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,054.85 : 1,086,130.67 = 447,523.13 : x
  2. Step 2: Convert to fraction form
    787,054.85/1,086,130.67 = 447,523.13/x
  3. Step 3: Cross multiply
    787,054.85x = 1,086,130.67 × 447,523.13
  4. Step 4: Simplify right side
    787,054.85x = 486,068,597,027.40
  5. Step 5: Solve for x
    x = 486,068,597,027.40/787,054.85
  6. Step 6: Final answer
    x = 617,579.06

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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.