Home / 1,687,656.51-2,531,162.21-505,704.51

Finding the Fourth Proportional to 1,687,656.51, 2,531,162.21 and 505,704.51

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Solution

The fourth proportional to 1,687,656.51, 2,531,162.21 and 505,704.51 is: 758,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,656.51 : 2,531,162.21 = 505,704.51 : x
  2. Step 2: Convert to fraction form
    1,687,656.51/2,531,162.21 = 505,704.51/x
  3. Step 3: Cross multiply
    1,687,656.51x = 2,531,162.21 × 505,704.51
  4. Step 4: Simplify right side
    1,687,656.51x = 1,280,020,142,610.04
  5. Step 5: Solve for x
    x = 1,280,020,142,610.04/1,687,656.51
  6. Step 6: Final answer
    x = 758,460.11

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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.