Home / 776,579.73-1,072,010.70-522,078.54

Finding the Fourth Proportional to 776,579.73, 1,072,010.70 and 522,078.54

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Solution

The fourth proportional to 776,579.73, 1,072,010.70 and 522,078.54 is: 720,690.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,579.73 : 1,072,010.70 = 522,078.54 : x
  2. Step 2: Convert to fraction form
    776,579.73/1,072,010.70 = 522,078.54/x
  3. Step 3: Cross multiply
    776,579.73x = 1,072,010.70 × 522,078.54
  4. Step 4: Simplify right side
    776,579.73x = 559,673,781,120.38
  5. Step 5: Solve for x
    x = 559,673,781,120.38/776,579.73
  6. Step 6: Final answer
    x = 720,690.69

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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.