Home / 772,767.30-1,159,138.80-211,801.80

Finding the Fourth Proportional to 772,767.30, 1,159,138.80 and 211,801.80

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Solution

The fourth proportional to 772,767.30, 1,159,138.80 and 211,801.80 is: 317,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,767.30 : 1,159,138.80 = 211,801.80 : x
  2. Step 2: Convert to fraction form
    772,767.30/1,159,138.80 = 211,801.80/x
  3. Step 3: Cross multiply
    772,767.30x = 1,159,138.80 × 211,801.80
  4. Step 4: Simplify right side
    772,767.30x = 245,507,684,289.84
  5. Step 5: Solve for x
    x = 245,507,684,289.84/772,767.30
  6. Step 6: Final answer
    x = 317,699.37

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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.