Home / 1,100,878.71-1,651,738.38-427,432.85

Finding the Fourth Proportional to 1,100,878.71, 1,651,738.38 and 427,432.85

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Solution

The fourth proportional to 1,100,878.71, 1,651,738.38 and 427,432.85 is: 641,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,878.71 : 1,651,738.38 = 427,432.85 : x
  2. Step 2: Convert to fraction form
    1,100,878.71/1,651,738.38 = 427,432.85/x
  3. Step 3: Cross multiply
    1,100,878.71x = 1,651,738.38 × 427,432.85
  4. Step 4: Simplify right side
    1,100,878.71x = 706,007,243,217.78
  5. Step 5: Solve for x
    x = 706,007,243,217.78/1,100,878.71
  6. Step 6: Final answer
    x = 641,312.47

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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.