Home / 682,869.47-942,363.12-376,940.28

Finding the Fourth Proportional to 682,869.47, 942,363.12 and 376,940.28

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Solution

The fourth proportional to 682,869.47, 942,363.12 and 376,940.28 is: 520,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,869.47 : 942,363.12 = 376,940.28 : x
  2. Step 2: Convert to fraction form
    682,869.47/942,363.12 = 376,940.28/x
  3. Step 3: Cross multiply
    682,869.47x = 942,363.12 × 376,940.28
  4. Step 4: Simplify right side
    682,869.47x = 355,214,618,314.47
  5. Step 5: Solve for x
    x = 355,214,618,314.47/682,869.47
  6. Step 6: Final answer
    x = 520,179.38

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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.