Home / 1,290,449.33-1,935,667.51-330,900.65

Finding the Fourth Proportional to 1,290,449.33, 1,935,667.51 and 330,900.65

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Solution

The fourth proportional to 1,290,449.33, 1,935,667.51 and 330,900.65 is: 496,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,449.33 : 1,935,667.51 = 330,900.65 : x
  2. Step 2: Convert to fraction form
    1,290,449.33/1,935,667.51 = 330,900.65/x
  3. Step 3: Cross multiply
    1,290,449.33x = 1,935,667.51 × 330,900.65
  4. Step 4: Simplify right side
    1,290,449.33x = 640,513,637,242.88
  5. Step 5: Solve for x
    x = 640,513,637,242.88/1,290,449.33
  6. Step 6: Final answer
    x = 496,349.31

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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.