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Finding the Fourth Proportional to 676,500, 933,599.70 and 374,694

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Solution

The fourth proportional to 676,500, 933,599.70 and 374,694 is: 517,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,500 : 933,599.70 = 374,694 : x
  2. Step 2: Convert to fraction form
    676,500/933,599.70 = 374,694/x
  3. Step 3: Cross multiply
    676,500x = 933,599.70 × 374,694
  4. Step 4: Simplify right side
    676,500x = 349,814,205,991.80
  5. Step 5: Solve for x
    x = 349,814,205,991.80/676,500
  6. Step 6: Final answer
    x = 517,094.17

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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.