Home / 1,263,211.40-1,895,892.30-515,793.80

Finding the Fourth Proportional to 1,263,211.40, 1,895,892.30 and 515,793.80

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Solution

The fourth proportional to 1,263,211.40, 1,895,892.30 and 515,793.80 is: 774,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,211.40 : 1,895,892.30 = 515,793.80 : x
  2. Step 2: Convert to fraction form
    1,263,211.40/1,895,892.30 = 515,793.80/x
  3. Step 3: Cross multiply
    1,263,211.40x = 1,895,892.30 × 515,793.80
  4. Step 4: Simplify right side
    1,263,211.40x = 977,889,493,807.74
  5. Step 5: Solve for x
    x = 977,889,493,807.74/1,263,211.40
  6. Step 6: Final answer
    x = 774,129.73

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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.