Home / 1,298,894.43-1,792,397.10-718,082.79

Finding the Fourth Proportional to 1,298,894.43, 1,792,397.10 and 718,082.79

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Solution

The fourth proportional to 1,298,894.43, 1,792,397.10 and 718,082.79 is: 990,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,894.43 : 1,792,397.10 = 718,082.79 : x
  2. Step 2: Convert to fraction form
    1,298,894.43/1,792,397.10 = 718,082.79/x
  3. Step 3: Cross multiply
    1,298,894.43x = 1,792,397.10 × 718,082.79
  4. Step 4: Simplify right side
    1,298,894.43x = 1,287,089,510,355.91
  5. Step 5: Solve for x
    x = 1,287,089,510,355.91/1,298,894.43
  6. Step 6: Final answer
    x = 990,911.56

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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.