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Finding the Fourth Proportional to 602,640.55, 831,654.16 and 330,733.74

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Solution

The fourth proportional to 602,640.55, 831,654.16 and 330,733.74 is: 456,418.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,640.55 : 831,654.16 = 330,733.74 : x
  2. Step 2: Convert to fraction form
    602,640.55/831,654.16 = 330,733.74/x
  3. Step 3: Cross multiply
    602,640.55x = 831,654.16 × 330,733.74
  4. Step 4: Simplify right side
    602,640.55x = 275,056,093,001.67
  5. Step 5: Solve for x
    x = 275,056,093,001.67/602,640.55
  6. Step 6: Final answer
    x = 456,418.16

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1.5x scale

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.