Home / 1,210,236.90-1,816,477.05-611,619.42

Finding the Fourth Proportional to 1,210,236.90, 1,816,477.05 and 611,619.42

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Solution

The fourth proportional to 1,210,236.90, 1,816,477.05 and 611,619.42 is: 917,996.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,236.90 : 1,816,477.05 = 611,619.42 : x
  2. Step 2: Convert to fraction form
    1,210,236.90/1,816,477.05 = 611,619.42/x
  3. Step 3: Cross multiply
    1,210,236.90x = 1,816,477.05 × 611,619.42
  4. Step 4: Simplify right side
    1,210,236.90x = 1,110,992,639,764.31
  5. Step 5: Solve for x
    x = 1,110,992,639,764.31/1,210,236.90
  6. Step 6: Final answer
    x = 917,996.01

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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.