Home / 1,643,026.88-2,462,337.34-1,278,728.38

Finding the Fourth Proportional to 1,643,026.88, 2,462,337.34 and 1,278,728.38

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Solution

The fourth proportional to 1,643,026.88, 2,462,337.34 and 1,278,728.38 is: 1,916,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,026.88 : 2,462,337.34 = 1,278,728.38 : x
  2. Step 2: Convert to fraction form
    1,643,026.88/2,462,337.34 = 1,278,728.38/x
  3. Step 3: Cross multiply
    1,643,026.88x = 2,462,337.34 × 1,278,728.38
  4. Step 4: Simplify right side
    1,643,026.88x = 3,148,660,623,822.16
  5. Step 5: Solve for x
    x = 3,148,660,623,822.16/1,643,026.88
  6. Step 6: Final answer
    x = 1,916,378.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.