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Finding the Fourth Proportional to 604,940.75, 834,994.53 and 395,419.08

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Solution

The fourth proportional to 604,940.75, 834,994.53 and 395,419.08 is: 545,793.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,940.75 : 834,994.53 = 395,419.08 : x
  2. Step 2: Convert to fraction form
    604,940.75/834,994.53 = 395,419.08/x
  3. Step 3: Cross multiply
    604,940.75x = 834,994.53 × 395,419.08
  4. Step 4: Simplify right side
    604,940.75x = 330,172,771,988.86
  5. Step 5: Solve for x
    x = 330,172,771,988.86/604,940.75
  6. Step 6: Final answer
    x = 545,793.57

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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.