Home / 1,542,696.90-2,129,039.82-889,429.20

Finding the Fourth Proportional to 1,542,696.90, 2,129,039.82 and 889,429.20

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Solution

The fourth proportional to 1,542,696.90, 2,129,039.82 and 889,429.20 is: 1,227,480.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,696.90 : 2,129,039.82 = 889,429.20 : x
  2. Step 2: Convert to fraction form
    1,542,696.90/2,129,039.82 = 889,429.20/x
  3. Step 3: Cross multiply
    1,542,696.90x = 2,129,039.82 × 889,429.20
  4. Step 4: Simplify right side
    1,542,696.90x = 1,893,630,183,870.74
  5. Step 5: Solve for x
    x = 1,893,630,183,870.74/1,542,696.90
  6. Step 6: Final answer
    x = 1,227,480.38

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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.