Home / 1,869,305.76-2,579,778-1,042,435.44

Finding the Fourth Proportional to 1,869,305.76, 2,579,778 and 1,042,435.44

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Solution

The fourth proportional to 1,869,305.76, 2,579,778 and 1,042,435.44 is: 1,438,636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,305.76 : 2,579,778 = 1,042,435.44 : x
  2. Step 2: Convert to fraction form
    1,869,305.76/2,579,778 = 1,042,435.44/x
  3. Step 3: Cross multiply
    1,869,305.76x = 2,579,778 × 1,042,435.44
  4. Step 4: Simplify right side
    1,869,305.76x = 2,689,252,014,532.32
  5. Step 5: Solve for x
    x = 2,689,252,014,532.32/1,869,305.76
  6. Step 6: Final answer
    x = 1,438,636.78

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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.