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Finding the Fourth Proportional to 959,445, 1,324,150.74 and 557,037

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Solution

The fourth proportional to 959,445, 1,324,150.74 and 557,037 is: 768,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,445 : 1,324,150.74 = 557,037 : x
  2. Step 2: Convert to fraction form
    959,445/1,324,150.74 = 557,037/x
  3. Step 3: Cross multiply
    959,445x = 1,324,150.74 × 557,037
  4. Step 4: Simplify right side
    959,445x = 737,600,955,757.38
  5. Step 5: Solve for x
    x = 737,600,955,757.38/959,445
  6. Step 6: Final answer
    x = 768,778.78

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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.