Home / 1,217,793.90-1,823,191.65-1,091,822.70

Finding the Fourth Proportional to 1,217,793.90, 1,823,191.65 and 1,091,822.70

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Solution

The fourth proportional to 1,217,793.90, 1,823,191.65 and 1,091,822.70 is: 1,634,596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,793.90 : 1,823,191.65 = 1,091,822.70 : x
  2. Step 2: Convert to fraction form
    1,217,793.90/1,823,191.65 = 1,091,822.70/x
  3. Step 3: Cross multiply
    1,217,793.90x = 1,823,191.65 × 1,091,822.70
  4. Step 4: Simplify right side
    1,217,793.90x = 1,990,602,029,920.45
  5. Step 5: Solve for x
    x = 1,990,602,029,920.45/1,217,793.90
  6. Step 6: Final answer
    x = 1,634,596.81

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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.