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Finding the Fourth Proportional to 680,199.84, 938,634.84 and 374,265

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Solution

The fourth proportional to 680,199.84, 938,634.84 and 374,265 is: 516,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,199.84 : 938,634.84 = 374,265 : x
  2. Step 2: Convert to fraction form
    680,199.84/938,634.84 = 374,265/x
  3. Step 3: Cross multiply
    680,199.84x = 938,634.84 × 374,265
  4. Step 4: Simplify right side
    680,199.84x = 351,298,168,392.60
  5. Step 5: Solve for x
    x = 351,298,168,392.60/680,199.84
  6. Step 6: Final answer
    x = 516,463.17

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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.