Home / 1,550,693.81-2,139,643.68-905,989.43

Finding the Fourth Proportional to 1,550,693.81, 2,139,643.68 and 905,989.43

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Solution

The fourth proportional to 1,550,693.81, 2,139,643.68 and 905,989.43 is: 1,250,082.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,693.81 : 2,139,643.68 = 905,989.43 : x
  2. Step 2: Convert to fraction form
    1,550,693.81/2,139,643.68 = 905,989.43/x
  3. Step 3: Cross multiply
    1,550,693.81x = 2,139,643.68 × 905,989.43
  4. Step 4: Simplify right side
    1,550,693.81x = 1,938,494,558,046.30
  5. Step 5: Solve for x
    x = 1,938,494,558,046.30/1,550,693.81
  6. Step 6: Final answer
    x = 1,250,082.09

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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.