Home / 1,145,871.53-1,580,749.83-763,408.97

Finding the Fourth Proportional to 1,145,871.53, 1,580,749.83 and 763,408.97

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Solution

The fourth proportional to 1,145,871.53, 1,580,749.83 and 763,408.97 is: 1,053,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,871.53 : 1,580,749.83 = 763,408.97 : x
  2. Step 2: Convert to fraction form
    1,145,871.53/1,580,749.83 = 763,408.97/x
  3. Step 3: Cross multiply
    1,145,871.53x = 1,580,749.83 × 763,408.97
  4. Step 4: Simplify right side
    1,145,871.53x = 1,206,758,599,547.98
  5. Step 5: Solve for x
    x = 1,206,758,599,547.98/1,145,871.53
  6. Step 6: Final answer
    x = 1,053,136.03

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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.