Home / 2,784,478.78-4,176,721.47-762,740.12

Finding the Fourth Proportional to 2,784,478.78, 4,176,721.47 and 762,740.12

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Solution

The fourth proportional to 2,784,478.78, 4,176,721.47 and 762,740.12 is: 1,144,111.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,478.78 : 4,176,721.47 = 762,740.12 : x
  2. Step 2: Convert to fraction form
    2,784,478.78/4,176,721.47 = 762,740.12/x
  3. Step 3: Cross multiply
    2,784,478.78x = 4,176,721.47 × 762,740.12
  4. Step 4: Simplify right side
    2,784,478.78x = 3,185,753,048,536.46
  5. Step 5: Solve for x
    x = 3,185,753,048,536.46/2,784,478.78
  6. Step 6: Final answer
    x = 1,144,111.09

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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.