Home / 1,271,886.78-1,755,301.41-728,193.11

Finding the Fourth Proportional to 1,271,886.78, 1,755,301.41 and 728,193.11

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Solution

The fourth proportional to 1,271,886.78, 1,755,301.41 and 728,193.11 is: 1,004,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,886.78 : 1,755,301.41 = 728,193.11 : x
  2. Step 2: Convert to fraction form
    1,271,886.78/1,755,301.41 = 728,193.11/x
  3. Step 3: Cross multiply
    1,271,886.78x = 1,755,301.41 × 728,193.11
  4. Step 4: Simplify right side
    1,271,886.78x = 1,278,198,389,094.32
  5. Step 5: Solve for x
    x = 1,278,198,389,094.32/1,271,886.78
  6. Step 6: Final answer
    x = 1,004,962.40

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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.