Home / 1,129,389.01-1,694,083.52-287,940.76

Finding the Fourth Proportional to 1,129,389.01, 1,694,083.52 and 287,940.76

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Solution

The fourth proportional to 1,129,389.01, 1,694,083.52 and 287,940.76 is: 431,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,389.01 : 1,694,083.52 = 287,940.76 : x
  2. Step 2: Convert to fraction form
    1,129,389.01/1,694,083.52 = 287,940.76/x
  3. Step 3: Cross multiply
    1,129,389.01x = 1,694,083.52 × 287,940.76
  4. Step 4: Simplify right side
    1,129,389.01x = 487,795,698,466.62
  5. Step 5: Solve for x
    x = 487,795,698,466.62/1,129,389.01
  6. Step 6: Final answer
    x = 431,911.14

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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.