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Finding the Fourth Proportional to 604,396.81, 834,128.78 and 346,308

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Solution

The fourth proportional to 604,396.81, 834,128.78 and 346,308 is: 477,940.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,396.81 : 834,128.78 = 346,308 : x
  2. Step 2: Convert to fraction form
    604,396.81/834,128.78 = 346,308/x
  3. Step 3: Cross multiply
    604,396.81x = 834,128.78 × 346,308
  4. Step 4: Simplify right side
    604,396.81x = 288,865,469,544.24
  5. Step 5: Solve for x
    x = 288,865,469,544.24/604,396.81
  6. Step 6: Final answer
    x = 477,940.10

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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.