Home / 1,538,861.79-2,123,739.17-850,518.86

Finding the Fourth Proportional to 1,538,861.79, 2,123,739.17 and 850,518.86

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Solution

The fourth proportional to 1,538,861.79, 2,123,739.17 and 850,518.86 is: 1,173,776.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,861.79 : 2,123,739.17 = 850,518.86 : x
  2. Step 2: Convert to fraction form
    1,538,861.79/2,123,739.17 = 850,518.86/x
  3. Step 3: Cross multiply
    1,538,861.79x = 2,123,739.17 × 850,518.86
  4. Step 4: Simplify right side
    1,538,861.79x = 1,806,280,217,805.75
  5. Step 5: Solve for x
    x = 1,806,280,217,805.75/1,538,861.79
  6. Step 6: Final answer
    x = 1,173,776.77

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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.