Home / 2,178,432.72-3,006,275.76-1,211,563.44

Finding the Fourth Proportional to 2,178,432.72, 3,006,275.76 and 1,211,563.44

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Solution

The fourth proportional to 2,178,432.72, 3,006,275.76 and 1,211,563.44 is: 1,671,979.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,432.72 : 3,006,275.76 = 1,211,563.44 : x
  2. Step 2: Convert to fraction form
    2,178,432.72/3,006,275.76 = 1,211,563.44/x
  3. Step 3: Cross multiply
    2,178,432.72x = 3,006,275.76 × 1,211,563.44
  4. Step 4: Simplify right side
    2,178,432.72x = 3,642,293,801,374.21
  5. Step 5: Solve for x
    x = 3,642,293,801,374.21/2,178,432.72
  6. Step 6: Final answer
    x = 1,671,979.02

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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.