Home / 1,298,888.91-1,792,389.47-718,077.24

Finding the Fourth Proportional to 1,298,888.91, 1,792,389.47 and 718,077.24

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Solution

The fourth proportional to 1,298,888.91, 1,792,389.47 and 718,077.24 is: 990,903.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,888.91 : 1,792,389.47 = 718,077.24 : x
  2. Step 2: Convert to fraction form
    1,298,888.91/1,792,389.47 = 718,077.24/x
  3. Step 3: Cross multiply
    1,298,888.91x = 1,792,389.47 × 718,077.24
  4. Step 4: Simplify right side
    1,298,888.91x = 1,287,074,080,032.28
  5. Step 5: Solve for x
    x = 1,287,074,080,032.28/1,298,888.91
  6. Step 6: Final answer
    x = 990,903.89

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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.