Home / 454,087.80-681,131.70-312,370.20

Finding the Fourth Proportional to 454,087.80, 681,131.70 and 312,370.20

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Solution

The fourth proportional to 454,087.80, 681,131.70 and 312,370.20 is: 468,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,087.80 : 681,131.70 = 312,370.20 : x
  2. Step 2: Convert to fraction form
    454,087.80/681,131.70 = 312,370.20/x
  3. Step 3: Cross multiply
    454,087.80x = 681,131.70 × 312,370.20
  4. Step 4: Simplify right side
    454,087.80x = 212,765,245,355.34
  5. Step 5: Solve for x
    x = 212,765,245,355.34/454,087.80
  6. Step 6: Final answer
    x = 468,555.30

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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.