Home / 1,296,987.14-1,789,812.50-724,080.62

Finding the Fourth Proportional to 1,296,987.14, 1,789,812.50 and 724,080.62

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Solution

The fourth proportional to 1,296,987.14, 1,789,812.50 and 724,080.62 is: 999,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,987.14 : 1,789,812.50 = 724,080.62 : x
  2. Step 2: Convert to fraction form
    1,296,987.14/1,789,812.50 = 724,080.62/x
  3. Step 3: Cross multiply
    1,296,987.14x = 1,789,812.50 × 724,080.62
  4. Step 4: Simplify right side
    1,296,987.14x = 1,295,968,544,683.75
  5. Step 5: Solve for x
    x = 1,295,968,544,683.75/1,296,987.14
  6. Step 6: Final answer
    x = 999,214.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.