Home / 1,235,756.80-1,850,524.80-812,742.40

Finding the Fourth Proportional to 1,235,756.80, 1,850,524.80 and 812,742.40

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Solution

The fourth proportional to 1,235,756.80, 1,850,524.80 and 812,742.40 is: 1,217,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,756.80 : 1,850,524.80 = 812,742.40 : x
  2. Step 2: Convert to fraction form
    1,235,756.80/1,850,524.80 = 812,742.40/x
  3. Step 3: Cross multiply
    1,235,756.80x = 1,850,524.80 × 812,742.40
  4. Step 4: Simplify right side
    1,235,756.80x = 1,503,999,967,211.52
  5. Step 5: Solve for x
    x = 1,503,999,967,211.52/1,235,756.80
  6. Step 6: Final answer
    x = 1,217,067.93

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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.