Home / 680,009.31-938,383.20-374,066.29

Finding the Fourth Proportional to 680,009.31, 938,383.20 and 374,066.29

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Solution

The fourth proportional to 680,009.31, 938,383.20 and 374,066.29 is: 516,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,009.31 : 938,383.20 = 374,066.29 : x
  2. Step 2: Convert to fraction form
    680,009.31/938,383.20 = 374,066.29/x
  3. Step 3: Cross multiply
    680,009.31x = 938,383.20 × 374,066.29
  4. Step 4: Simplify right side
    680,009.31x = 351,017,519,168.96
  5. Step 5: Solve for x
    x = 351,017,519,168.96/680,009.31
  6. Step 6: Final answer
    x = 516,195.17

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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.