Home / 2,612,749.62-3,919,124.75-815,787

Finding the Fourth Proportional to 2,612,749.62, 3,919,124.75 and 815,787

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Solution

The fourth proportional to 2,612,749.62, 3,919,124.75 and 815,787 is: 1,223,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,749.62 : 3,919,124.75 = 815,787 : x
  2. Step 2: Convert to fraction form
    2,612,749.62/3,919,124.75 = 815,787/x
  3. Step 3: Cross multiply
    2,612,749.62x = 3,919,124.75 × 815,787
  4. Step 4: Simplify right side
    2,612,749.62x = 3,197,171,018,349.32
  5. Step 5: Solve for x
    x = 3,197,171,018,349.32/2,612,749.62
  6. Step 6: Final answer
    x = 1,223,680.60

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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.