Home / 1,206,391.89-1,665,467.16-930,146.40

Finding the Fourth Proportional to 1,206,391.89, 1,665,467.16 and 930,146.40

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Solution

The fourth proportional to 1,206,391.89, 1,665,467.16 and 930,146.40 is: 1,284,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,391.89 : 1,665,467.16 = 930,146.40 : x
  2. Step 2: Convert to fraction form
    1,206,391.89/1,665,467.16 = 930,146.40/x
  3. Step 3: Cross multiply
    1,206,391.89x = 1,665,467.16 × 930,146.40
  4. Step 4: Simplify right side
    1,206,391.89x = 1,549,128,283,192.22
  5. Step 5: Solve for x
    x = 1,549,128,283,192.22/1,206,391.89
  6. Step 6: Final answer
    x = 1,284,100.38

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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.