Home / 780,008.06-1,170,012.09-189,032.06

Finding the Fourth Proportional to 780,008.06, 1,170,012.09 and 189,032.06

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Solution

The fourth proportional to 780,008.06, 1,170,012.09 and 189,032.06 is: 283,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,008.06 : 1,170,012.09 = 189,032.06 : x
  2. Step 2: Convert to fraction form
    780,008.06/1,170,012.09 = 189,032.06/x
  3. Step 3: Cross multiply
    780,008.06x = 1,170,012.09 × 189,032.06
  4. Step 4: Simplify right side
    780,008.06x = 221,169,799,231.51
  5. Step 5: Solve for x
    x = 221,169,799,231.51/780,008.06
  6. Step 6: Final answer
    x = 283,548.09

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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.