Home / 2,258,420.31-3,116,217.78-1,278,354.33

Finding the Fourth Proportional to 2,258,420.31, 3,116,217.78 and 1,278,354.33

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Solution

The fourth proportional to 2,258,420.31, 3,116,217.78 and 1,278,354.33 is: 1,763,901.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258,420.31 : 3,116,217.78 = 1,278,354.33 : x
  2. Step 2: Convert to fraction form
    2,258,420.31/3,116,217.78 = 1,278,354.33/x
  3. Step 3: Cross multiply
    2,258,420.31x = 3,116,217.78 × 1,278,354.33
  4. Step 4: Simplify right side
    2,258,420.31x = 3,983,630,492,285.99
  5. Step 5: Solve for x
    x = 3,983,630,492,285.99/2,258,420.31
  6. Step 6: Final answer
    x = 1,763,901.29

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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.