Home / 2,191,590.78-3,288,258.07-843,391.40

Finding the Fourth Proportional to 2,191,590.78, 3,288,258.07 and 843,391.40

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Solution

The fourth proportional to 2,191,590.78, 3,288,258.07 and 843,391.40 is: 1,265,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,590.78 : 3,288,258.07 = 843,391.40 : x
  2. Step 2: Convert to fraction form
    2,191,590.78/3,288,258.07 = 843,391.40/x
  3. Step 3: Cross multiply
    2,191,590.78x = 3,288,258.07 × 843,391.40
  4. Step 4: Simplify right side
    2,191,590.78x = 2,773,288,572,068.06
  5. Step 5: Solve for x
    x = 2,773,288,572,068.06/2,191,590.78
  6. Step 6: Final answer
    x = 1,265,422.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.