Home / 1,211,793.90-1,817,690.85-807,636.30

Finding the Fourth Proportional to 1,211,793.90, 1,817,690.85 and 807,636.30

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Solution

The fourth proportional to 1,211,793.90, 1,817,690.85 and 807,636.30 is: 1,211,454.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,793.90 : 1,817,690.85 = 807,636.30 : x
  2. Step 2: Convert to fraction form
    1,211,793.90/1,817,690.85 = 807,636.30/x
  3. Step 3: Cross multiply
    1,211,793.90x = 1,817,690.85 × 807,636.30
  4. Step 4: Simplify right side
    1,211,793.90x = 1,468,033,112,637.86
  5. Step 5: Solve for x
    x = 1,468,033,112,637.86/1,211,793.90
  6. Step 6: Final answer
    x = 1,211,454.45

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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.