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Finding the Fourth Proportional to 602,353.88, 831,256.08 and 330,404

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Solution

The fourth proportional to 602,353.88, 831,256.08 and 330,404 is: 455,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,353.88 : 831,256.08 = 330,404 : x
  2. Step 2: Convert to fraction form
    602,353.88/831,256.08 = 330,404/x
  3. Step 3: Cross multiply
    602,353.88x = 831,256.08 × 330,404
  4. Step 4: Simplify right side
    602,353.88x = 274,650,333,856.32
  5. Step 5: Solve for x
    x = 274,650,333,856.32/602,353.88
  6. Step 6: Final answer
    x = 455,961.76

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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.