Home / 1,912,859.64-2,638,953.90-1,138,335.24

Finding the Fourth Proportional to 1,912,859.64, 2,638,953.90 and 1,138,335.24

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Solution

The fourth proportional to 1,912,859.64, 2,638,953.90 and 1,138,335.24 is: 1,570,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,859.64 : 2,638,953.90 = 1,138,335.24 : x
  2. Step 2: Convert to fraction form
    1,912,859.64/2,638,953.90 = 1,138,335.24/x
  3. Step 3: Cross multiply
    1,912,859.64x = 2,638,953.90 × 1,138,335.24
  4. Step 4: Simplify right side
    1,912,859.64x = 3,004,014,221,105.44
  5. Step 5: Solve for x
    x = 3,004,014,221,105.44/1,912,859.64
  6. Step 6: Final answer
    x = 1,570,431.08

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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.