Home / 1,555,274.95-2,146,067.57-866,865.11

Finding the Fourth Proportional to 1,555,274.95, 2,146,067.57 and 866,865.11

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Solution

The fourth proportional to 1,555,274.95, 2,146,067.57 and 866,865.11 is: 1,196,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,274.95 : 2,146,067.57 = 866,865.11 : x
  2. Step 2: Convert to fraction form
    1,555,274.95/2,146,067.57 = 866,865.11/x
  3. Step 3: Cross multiply
    1,555,274.95x = 2,146,067.57 × 866,865.11
  4. Step 4: Simplify right side
    1,555,274.95x = 1,860,351,091,572.31
  5. Step 5: Solve for x
    x = 1,860,351,091,572.31/1,555,274.95
  6. Step 6: Final answer
    x = 1,196,155.76

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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.