Home / 890,411.64-1,335,699.96-321,934.92

Finding the Fourth Proportional to 890,411.64, 1,335,699.96 and 321,934.92

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Solution

The fourth proportional to 890,411.64, 1,335,699.96 and 321,934.92 is: 482,932.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,411.64 : 1,335,699.96 = 321,934.92 : x
  2. Step 2: Convert to fraction form
    890,411.64/1,335,699.96 = 321,934.92/x
  3. Step 3: Cross multiply
    890,411.64x = 1,335,699.96 × 321,934.92
  4. Step 4: Simplify right side
    890,411.64x = 430,008,459,766.60
  5. Step 5: Solve for x
    x = 430,008,459,766.60/890,411.64
  6. Step 6: Final answer
    x = 482,932.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.