Home / 1,298,982.69-1,792,658.60-718,195.08

Finding the Fourth Proportional to 1,298,982.69, 1,792,658.60 and 718,195.08

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Solution

The fourth proportional to 1,298,982.69, 1,792,658.60 and 718,195.08 is: 991,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,982.69 : 1,792,658.60 = 718,195.08 : x
  2. Step 2: Convert to fraction form
    1,298,982.69/1,792,658.60 = 718,195.08/x
  3. Step 3: Cross multiply
    1,298,982.69x = 1,792,658.60 × 718,195.08
  4. Step 4: Simplify right side
    1,298,982.69x = 1,287,478,586,639.69
  5. Step 5: Solve for x
    x = 1,287,478,586,639.69/1,298,982.69
  6. Step 6: Final answer
    x = 991,143.76

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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.