Home / 3,171,551.49-4,757,284.71-775,416.78

Finding the Fourth Proportional to 3,171,551.49, 4,757,284.71 and 775,416.78

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Solution

The fourth proportional to 3,171,551.49, 4,757,284.71 and 775,416.78 is: 1,163,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,551.49 : 4,757,284.71 = 775,416.78 : x
  2. Step 2: Convert to fraction form
    3,171,551.49/4,757,284.71 = 775,416.78/x
  3. Step 3: Cross multiply
    3,171,551.49x = 4,757,284.71 × 775,416.78
  4. Step 4: Simplify right side
    3,171,551.49x = 3,688,878,391,371.43
  5. Step 5: Solve for x
    x = 3,688,878,391,371.43/3,171,551.49
  6. Step 6: Final answer
    x = 1,163,114.77

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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.