Home / 1,212,795.40-1,815,693.90-1,177,803.40

Finding the Fourth Proportional to 1,212,795.40, 1,815,693.90 and 1,177,803.40

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Solution

The fourth proportional to 1,212,795.40, 1,815,693.90 and 1,177,803.40 is: 1,763,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,795.40 : 1,815,693.90 = 1,177,803.40 : x
  2. Step 2: Convert to fraction form
    1,212,795.40/1,815,693.90 = 1,177,803.40/x
  3. Step 3: Cross multiply
    1,212,795.40x = 1,815,693.90 × 1,177,803.40
  4. Step 4: Simplify right side
    1,212,795.40x = 2,138,530,448,779.26
  5. Step 5: Solve for x
    x = 2,138,530,448,779.26/1,212,795.40
  6. Step 6: Final answer
    x = 1,763,306.86

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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.