Home / 776,678.54-1,072,005.14-449,938.75

Finding the Fourth Proportional to 776,678.54, 1,072,005.14 and 449,938.75

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Solution

The fourth proportional to 776,678.54, 1,072,005.14 and 449,938.75 is: 621,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,678.54 : 1,072,005.14 = 449,938.75 : x
  2. Step 2: Convert to fraction form
    776,678.54/1,072,005.14 = 449,938.75/x
  3. Step 3: Cross multiply
    776,678.54x = 1,072,005.14 × 449,938.75
  4. Step 4: Simplify right side
    776,678.54x = 482,336,647,755.47
  5. Step 5: Solve for x
    x = 482,336,647,755.47/776,678.54
  6. Step 6: Final answer
    x = 621,024.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.