Home / 572,590.38-789,997.53-330,784.73

Finding the Fourth Proportional to 572,590.38, 789,997.53 and 330,784.73

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Solution

The fourth proportional to 572,590.38, 789,997.53 and 330,784.73 is: 456,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,590.38 : 789,997.53 = 330,784.73 : x
  2. Step 2: Convert to fraction form
    572,590.38/789,997.53 = 330,784.73/x
  3. Step 3: Cross multiply
    572,590.38x = 789,997.53 × 330,784.73
  4. Step 4: Simplify right side
    572,590.38x = 261,319,115,711.73
  5. Step 5: Solve for x
    x = 261,319,115,711.73/572,590.38
  6. Step 6: Final answer
    x = 456,380.56

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Double scale
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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.