Home / 3,120,048-4,680,072-756,144

Finding the Fourth Proportional to 3,120,048, 4,680,072 and 756,144

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Solution

The fourth proportional to 3,120,048, 4,680,072 and 756,144 is: 1,134,216

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,048 : 4,680,072 = 756,144 : x
  2. Step 2: Convert to fraction form
    3,120,048/4,680,072 = 756,144/x
  3. Step 3: Cross multiply
    3,120,048x = 4,680,072 × 756,144
  4. Step 4: Simplify right side
    3,120,048x = 3,538,808,362,368
  5. Step 5: Solve for x
    x = 3,538,808,362,368/3,120,048
  6. Step 6: Final answer
    x = 1,134,216

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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.