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Finding the Fourth Proportional to 604,902.50, 834,419.52 and 378,154.34

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Solution

The fourth proportional to 604,902.50, 834,419.52 and 378,154.34 is: 521,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,902.50 : 834,419.52 = 378,154.34 : x
  2. Step 2: Convert to fraction form
    604,902.50/834,419.52 = 378,154.34/x
  3. Step 3: Cross multiply
    604,902.50x = 834,419.52 × 378,154.34
  4. Step 4: Simplify right side
    604,902.50x = 315,539,358,696.62
  5. Step 5: Solve for x
    x = 315,539,358,696.62/604,902.50
  6. Step 6: Final answer
    x = 521,636.73

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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.