Home / 1,809,609.78-2,495,877.57-1,229,280.42

Finding the Fourth Proportional to 1,809,609.78, 2,495,877.57 and 1,229,280.42

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Solution

The fourth proportional to 1,809,609.78, 2,495,877.57 and 1,229,280.42 is: 1,695,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809,609.78 : 2,495,877.57 = 1,229,280.42 : x
  2. Step 2: Convert to fraction form
    1,809,609.78/2,495,877.57 = 1,229,280.42/x
  3. Step 3: Cross multiply
    1,809,609.78x = 2,495,877.57 × 1,229,280.42
  4. Step 4: Simplify right side
    1,809,609.78x = 3,068,133,427,518.18
  5. Step 5: Solve for x
    x = 3,068,133,427,518.18/1,809,609.78
  6. Step 6: Final answer
    x = 1,695,466.87

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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.