Home / 1,136,284.61-1,568,071.91-728,386.22

Finding the Fourth Proportional to 1,136,284.61, 1,568,071.91 and 728,386.22

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Solution

The fourth proportional to 1,136,284.61, 1,568,071.91 and 728,386.22 is: 1,005,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,284.61 : 1,568,071.91 = 728,386.22 : x
  2. Step 2: Convert to fraction form
    1,136,284.61/1,568,071.91 = 728,386.22/x
  3. Step 3: Cross multiply
    1,136,284.61x = 1,568,071.91 × 728,386.22
  4. Step 4: Simplify right side
    1,136,284.61x = 1,142,161,976,954.23
  5. Step 5: Solve for x
    x = 1,142,161,976,954.23/1,136,284.61
  6. Step 6: Final answer
    x = 1,005,172.45

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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.