Home / 1,285,270.20-1,927,905.30-1,236,281.40

Finding the Fourth Proportional to 1,285,270.20, 1,927,905.30 and 1,236,281.40

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Solution

The fourth proportional to 1,285,270.20, 1,927,905.30 and 1,236,281.40 is: 1,854,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,270.20 : 1,927,905.30 = 1,236,281.40 : x
  2. Step 2: Convert to fraction form
    1,285,270.20/1,927,905.30 = 1,236,281.40/x
  3. Step 3: Cross multiply
    1,285,270.20x = 1,927,905.30 × 1,236,281.40
  4. Step 4: Simplify right side
    1,285,270.20x = 2,383,433,463,351.42
  5. Step 5: Solve for x
    x = 2,383,433,463,351.42/1,285,270.20
  6. Step 6: Final answer
    x = 1,854,422.10

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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.