Home / 1,388,670.80-2,081,969.40-758,296.40

Finding the Fourth Proportional to 1,388,670.80, 2,081,969.40 and 758,296.40

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Solution

The fourth proportional to 1,388,670.80, 2,081,969.40 and 758,296.40 is: 1,136,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,670.80 : 2,081,969.40 = 758,296.40 : x
  2. Step 2: Convert to fraction form
    1,388,670.80/2,081,969.40 = 758,296.40/x
  3. Step 3: Cross multiply
    1,388,670.80x = 2,081,969.40 × 758,296.40
  4. Step 4: Simplify right side
    1,388,670.80x = 1,578,749,900,930.16
  5. Step 5: Solve for x
    x = 1,578,749,900,930.16/1,388,670.80
  6. Step 6: Final answer
    x = 1,136,878.45

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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.