Home / 1,129,505.50-1,558,728.53-620,218.81

Finding the Fourth Proportional to 1,129,505.50, 1,558,728.53 and 620,218.81

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Solution

The fourth proportional to 1,129,505.50, 1,558,728.53 and 620,218.81 is: 855,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,505.50 : 1,558,728.53 = 620,218.81 : x
  2. Step 2: Convert to fraction form
    1,129,505.50/1,558,728.53 = 620,218.81/x
  3. Step 3: Cross multiply
    1,129,505.50x = 1,558,728.53 × 620,218.81
  4. Step 4: Simplify right side
    1,129,505.50x = 966,752,753,989.65
  5. Step 5: Solve for x
    x = 966,752,753,989.65/1,129,505.50
  6. Step 6: Final answer
    x = 855,907.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.