Home / 1,121,211.18-1,547,249.85-611,917.20

Finding the Fourth Proportional to 1,121,211.18, 1,547,249.85 and 611,917.20

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Solution

The fourth proportional to 1,121,211.18, 1,547,249.85 and 611,917.20 is: 844,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,211.18 : 1,547,249.85 = 611,917.20 : x
  2. Step 2: Convert to fraction form
    1,121,211.18/1,547,249.85 = 611,917.20/x
  3. Step 3: Cross multiply
    1,121,211.18x = 1,547,249.85 × 611,917.20
  4. Step 4: Simplify right side
    1,121,211.18x = 946,788,795,912.42
  5. Step 5: Solve for x
    x = 946,788,795,912.42/1,121,211.18
  6. Step 6: Final answer
    x = 844,433.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.