Home / 1,868,295.30-2,578,728.45-1,216,548.06

Finding the Fourth Proportional to 1,868,295.30, 2,578,728.45 and 1,216,548.06

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Solution

The fourth proportional to 1,868,295.30, 2,578,728.45 and 1,216,548.06 is: 1,679,149.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,295.30 : 2,578,728.45 = 1,216,548.06 : x
  2. Step 2: Convert to fraction form
    1,868,295.30/2,578,728.45 = 1,216,548.06/x
  3. Step 3: Cross multiply
    1,868,295.30x = 2,578,728.45 × 1,216,548.06
  4. Step 4: Simplify right side
    1,868,295.30x = 3,137,147,093,114.31
  5. Step 5: Solve for x
    x = 3,137,147,093,114.31/1,868,295.30
  6. Step 6: Final answer
    x = 1,679,149.49

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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.