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Finding the Fourth Proportional to 893,344.40, 1,339,728.65 and 294,162.90

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Solution

The fourth proportional to 893,344.40, 1,339,728.65 and 294,162.90 is: 441,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,344.40 : 1,339,728.65 = 294,162.90 : x
  2. Step 2: Convert to fraction form
    893,344.40/1,339,728.65 = 294,162.90/x
  3. Step 3: Cross multiply
    893,344.40x = 1,339,728.65 × 294,162.90
  4. Step 4: Simplify right side
    893,344.40x = 394,098,463,426.27
  5. Step 5: Solve for x
    x = 394,098,463,426.27/893,344.40
  6. Step 6: Final answer
    x = 441,149.53

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1.5x scale

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.