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Finding the Fourth Proportional to 682,341.42, 941,640.95 and 395,948.10

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Solution

The fourth proportional to 682,341.42, 941,640.95 and 395,948.10 is: 546,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,341.42 : 941,640.95 = 395,948.10 : x
  2. Step 2: Convert to fraction form
    682,341.42/941,640.95 = 395,948.10/x
  3. Step 3: Cross multiply
    682,341.42x = 941,640.95 × 395,948.10
  4. Step 4: Simplify right side
    682,341.42x = 372,840,945,034.70
  5. Step 5: Solve for x
    x = 372,840,945,034.70/682,341.42
  6. Step 6: Final answer
    x = 546,414.06

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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.