Home / 2,078,769.72-2,867,121.48-1,788,869.91

Finding the Fourth Proportional to 2,078,769.72, 2,867,121.48 and 1,788,869.91

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Solution

The fourth proportional to 2,078,769.72, 2,867,121.48 and 1,788,869.91 is: 2,467,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,769.72 : 2,867,121.48 = 1,788,869.91 : x
  2. Step 2: Convert to fraction form
    2,078,769.72/2,867,121.48 = 1,788,869.91/x
  3. Step 3: Cross multiply
    2,078,769.72x = 2,867,121.48 × 1,788,869.91
  4. Step 4: Simplify right side
    2,078,769.72x = 5,128,907,343,886.67
  5. Step 5: Solve for x
    x = 5,128,907,343,886.67/2,078,769.72
  6. Step 6: Final answer
    x = 2,467,280.19

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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.