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Finding the Fourth Proportional to 602,295.72, 831,191.34 and 330,375.08

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Solution

The fourth proportional to 602,295.72, 831,191.34 and 330,375.08 is: 455,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,295.72 : 831,191.34 = 330,375.08 : x
  2. Step 2: Convert to fraction form
    602,295.72/831,191.34 = 330,375.08/x
  3. Step 3: Cross multiply
    602,295.72x = 831,191.34 × 330,375.08
  4. Step 4: Simplify right side
    602,295.72x = 274,604,901,291.85
  5. Step 5: Solve for x
    x = 274,604,901,291.85/602,295.72
  6. Step 6: Final answer
    x = 455,930.35

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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.