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Finding the Fourth Proportional to 323,649.41, 446,827.55 and 287,740.04

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Solution

The fourth proportional to 323,649.41, 446,827.55 and 287,740.04 is: 397,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,649.41 : 446,827.55 = 287,740.04 : x
  2. Step 2: Convert to fraction form
    323,649.41/446,827.55 = 287,740.04/x
  3. Step 3: Cross multiply
    323,649.41x = 446,827.55 × 287,740.04
  4. Step 4: Simplify right side
    323,649.41x = 128,570,173,437.26
  5. Step 5: Solve for x
    x = 128,570,173,437.26/323,649.41
  6. Step 6: Final answer
    x = 397,251.38

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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.