Home / 2,118,293.80-3,175,650.09-919,314.79

Finding the Fourth Proportional to 2,118,293.80, 3,175,650.09 and 919,314.79

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Solution

The fourth proportional to 2,118,293.80, 3,175,650.09 and 919,314.79 is: 1,378,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,293.80 : 3,175,650.09 = 919,314.79 : x
  2. Step 2: Convert to fraction form
    2,118,293.80/3,175,650.09 = 919,314.79/x
  3. Step 3: Cross multiply
    2,118,293.80x = 3,175,650.09 × 919,314.79
  4. Step 4: Simplify right side
    2,118,293.80x = 2,919,422,087,662.71
  5. Step 5: Solve for x
    x = 2,919,422,087,662.71/2,118,293.80
  6. Step 6: Final answer
    x = 1,378,195.08

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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.