Home / 1,216,129.80-1,824,194.70-817,998.60

Finding the Fourth Proportional to 1,216,129.80, 1,824,194.70 and 817,998.60

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Solution

The fourth proportional to 1,216,129.80, 1,824,194.70 and 817,998.60 is: 1,226,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,129.80 : 1,824,194.70 = 817,998.60 : x
  2. Step 2: Convert to fraction form
    1,216,129.80/1,824,194.70 = 817,998.60/x
  3. Step 3: Cross multiply
    1,216,129.80x = 1,824,194.70 × 817,998.60
  4. Step 4: Simplify right side
    1,216,129.80x = 1,492,188,710,727.42
  5. Step 5: Solve for x
    x = 1,492,188,710,727.42/1,216,129.80
  6. Step 6: Final answer
    x = 1,226,997.90

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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.