Home / 1,290,450.33-1,935,669.01-330,901.65

Finding the Fourth Proportional to 1,290,450.33, 1,935,669.01 and 330,901.65

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Solution

The fourth proportional to 1,290,450.33, 1,935,669.01 and 330,901.65 is: 496,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,450.33 : 1,935,669.01 = 330,901.65 : x
  2. Step 2: Convert to fraction form
    1,290,450.33/1,935,669.01 = 330,901.65/x
  3. Step 3: Cross multiply
    1,290,450.33x = 1,935,669.01 × 330,901.65
  4. Step 4: Simplify right side
    1,290,450.33x = 640,516,069,262.87
  5. Step 5: Solve for x
    x = 640,516,069,262.87/1,290,450.33
  6. Step 6: Final answer
    x = 496,350.81

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Double scale
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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.