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Finding the Fourth Proportional to 604,747.92, 834,272.82 and 389,956.80

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Solution

The fourth proportional to 604,747.92, 834,272.82 and 389,956.80 is: 537,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,747.92 : 834,272.82 = 389,956.80 : x
  2. Step 2: Convert to fraction form
    604,747.92/834,272.82 = 389,956.80/x
  3. Step 3: Cross multiply
    604,747.92x = 834,272.82 × 389,956.80
  4. Step 4: Simplify right side
    604,747.92x = 325,330,359,214.18
  5. Step 5: Solve for x
    x = 325,330,359,214.18/604,747.92
  6. Step 6: Final answer
    x = 537,960.28

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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.