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Finding the Fourth Proportional to 602,640.58, 831,514.08 and 347,844.15

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Solution

The fourth proportional to 602,640.58, 831,514.08 and 347,844.15 is: 479,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,640.58 : 831,514.08 = 347,844.15 : x
  2. Step 2: Convert to fraction form
    602,640.58/831,514.08 = 347,844.15/x
  3. Step 3: Cross multiply
    602,640.58x = 831,514.08 × 347,844.15
  4. Step 4: Simplify right side
    602,640.58x = 289,237,308,370.63
  5. Step 5: Solve for x
    x = 289,237,308,370.63/602,640.58
  6. Step 6: Final answer
    x = 479,949.94

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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.