Home / 1,129,245.56-1,558,361.49-619,980.74

Finding the Fourth Proportional to 1,129,245.56, 1,558,361.49 and 619,980.74

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Solution

The fourth proportional to 1,129,245.56, 1,558,361.49 and 619,980.74 is: 855,574.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,245.56 : 1,558,361.49 = 619,980.74 : x
  2. Step 2: Convert to fraction form
    1,129,245.56/1,558,361.49 = 619,980.74/x
  3. Step 3: Cross multiply
    1,129,245.56x = 1,558,361.49 × 619,980.74
  4. Step 4: Simplify right side
    1,129,245.56x = 966,154,109,757.70
  5. Step 5: Solve for x
    x = 966,154,109,757.70/1,129,245.56
  6. Step 6: Final answer
    x = 855,574.86

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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.