Home / 1,211,669.88-1,671,874.14-728,058.57

Finding the Fourth Proportional to 1,211,669.88, 1,671,874.14 and 728,058.57

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Solution

The fourth proportional to 1,211,669.88, 1,671,874.14 and 728,058.57 is: 1,004,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,669.88 : 1,671,874.14 = 728,058.57 : x
  2. Step 2: Convert to fraction form
    1,211,669.88/1,671,874.14 = 728,058.57/x
  3. Step 3: Cross multiply
    1,211,669.88x = 1,671,874.14 × 728,058.57
  4. Step 4: Simplify right side
    1,211,669.88x = 1,217,222,295,588.38
  5. Step 5: Solve for x
    x = 1,217,222,295,588.38/1,211,669.88
  6. Step 6: Final answer
    x = 1,004,582.45

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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.