Home / 919,832.38-1,379,803.93-387,394.92

Finding the Fourth Proportional to 919,832.38, 1,379,803.93 and 387,394.92

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Solution

The fourth proportional to 919,832.38, 1,379,803.93 and 387,394.92 is: 581,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,832.38 : 1,379,803.93 = 387,394.92 : x
  2. Step 2: Convert to fraction form
    919,832.38/1,379,803.93 = 387,394.92/x
  3. Step 3: Cross multiply
    919,832.38x = 1,379,803.93 × 387,394.92
  4. Step 4: Simplify right side
    919,832.38x = 534,529,032,109.55
  5. Step 5: Solve for x
    x = 534,529,032,109.55/919,832.38
  6. Step 6: Final answer
    x = 581,115.70

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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.