Home / 756,647.82-1,044,181.02-417,128.22

Finding the Fourth Proportional to 756,647.82, 1,044,181.02 and 417,128.22

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Solution

The fourth proportional to 756,647.82, 1,044,181.02 and 417,128.22 is: 575,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,647.82 : 1,044,181.02 = 417,128.22 : x
  2. Step 2: Convert to fraction form
    756,647.82/1,044,181.02 = 417,128.22/x
  3. Step 3: Cross multiply
    756,647.82x = 1,044,181.02 × 417,128.22
  4. Step 4: Simplify right side
    756,647.82x = 435,557,370,230.38
  5. Step 5: Solve for x
    x = 435,557,370,230.38/756,647.82
  6. Step 6: Final answer
    x = 575,640.82

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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.