Home / 490,087.40-734,742.30-268,471.40

Finding the Fourth Proportional to 490,087.40, 734,742.30 and 268,471.40

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Solution

The fourth proportional to 490,087.40, 734,742.30 and 268,471.40 is: 402,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,087.40 : 734,742.30 = 268,471.40 : x
  2. Step 2: Convert to fraction form
    490,087.40/734,742.30 = 268,471.40/x
  3. Step 3: Cross multiply
    490,087.40x = 734,742.30 × 268,471.40
  4. Step 4: Simplify right side
    490,087.40x = 197,257,293,920.22
  5. Step 5: Solve for x
    x = 197,257,293,920.22/490,087.40
  6. Step 6: Final answer
    x = 402,494.11

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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.