Home / 1,681,710.56-2,320,738.80-1,028,118.32

Finding the Fourth Proportional to 1,681,710.56, 2,320,738.80 and 1,028,118.32

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Solution

The fourth proportional to 1,681,710.56, 2,320,738.80 and 1,028,118.32 is: 1,418,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,710.56 : 2,320,738.80 = 1,028,118.32 : x
  2. Step 2: Convert to fraction form
    1,681,710.56/2,320,738.80 = 1,028,118.32/x
  3. Step 3: Cross multiply
    1,681,710.56x = 2,320,738.80 × 1,028,118.32
  4. Step 4: Simplify right side
    1,681,710.56x = 2,385,994,076,214.82
  5. Step 5: Solve for x
    x = 2,385,994,076,214.82/1,681,710.56
  6. Step 6: Final answer
    x = 1,418,789.97

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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.