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Finding the Fourth Proportional to 323,699.57, 446,897.01 and 287,790.24

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Solution

The fourth proportional to 323,699.57, 446,897.01 and 287,790.24 is: 397,320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,699.57 : 446,897.01 = 287,790.24 : x
  2. Step 2: Convert to fraction form
    323,699.57/446,897.01 = 287,790.24/x
  3. Step 3: Cross multiply
    323,699.57x = 446,897.01 × 287,790.24
  4. Step 4: Simplify right side
    323,699.57x = 128,612,597,763.18
  5. Step 5: Solve for x
    x = 128,612,597,763.18/323,699.57
  6. Step 6: Final answer
    x = 397,320.88

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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.