Home / 1,298,981.69-1,792,657.22-718,194.08

Finding the Fourth Proportional to 1,298,981.69, 1,792,657.22 and 718,194.08

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Solution

The fourth proportional to 1,298,981.69, 1,792,657.22 and 718,194.08 is: 991,142.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,981.69 : 1,792,657.22 = 718,194.08 : x
  2. Step 2: Convert to fraction form
    1,298,981.69/1,792,657.22 = 718,194.08/x
  3. Step 3: Cross multiply
    1,298,981.69x = 1,792,657.22 × 718,194.08
  4. Step 4: Simplify right side
    1,298,981.69x = 1,287,475,790,319.00
  5. Step 5: Solve for x
    x = 1,287,475,790,319.00/1,298,981.69
  6. Step 6: Final answer
    x = 991,142.37

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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.