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Finding the Fourth Proportional to 682,398.24, 941,712.71 and 376,478.25

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Solution

The fourth proportional to 682,398.24, 941,712.71 and 376,478.25 is: 519,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,398.24 : 941,712.71 = 376,478.25 : x
  2. Step 2: Convert to fraction form
    682,398.24/941,712.71 = 376,478.25/x
  3. Step 3: Cross multiply
    682,398.24x = 941,712.71 × 376,478.25
  4. Step 4: Simplify right side
    682,398.24x = 354,534,351,181.17
  5. Step 5: Solve for x
    x = 354,534,351,181.17/682,398.24
  6. Step 6: Final answer
    x = 519,541.71

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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.