Home / 1,667,561.76-2,489,139-1,432,415.52

Finding the Fourth Proportional to 1,667,561.76, 2,489,139 and 1,432,415.52

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Solution

The fourth proportional to 1,667,561.76, 2,489,139 and 1,432,415.52 is: 2,138,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667,561.76 : 2,489,139 = 1,432,415.52 : x
  2. Step 2: Convert to fraction form
    1,667,561.76/2,489,139 = 1,432,415.52/x
  3. Step 3: Cross multiply
    1,667,561.76x = 2,489,139 × 1,432,415.52
  4. Step 4: Simplify right side
    1,667,561.76x = 3,565,481,335,037.28
  5. Step 5: Solve for x
    x = 3,565,481,335,037.28/1,667,561.76
  6. Step 6: Final answer
    x = 2,138,140.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.