Home / 1,299,214.89-1,792,928.14-718,477.31

Finding the Fourth Proportional to 1,299,214.89, 1,792,928.14 and 718,477.31

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Solution

The fourth proportional to 1,299,214.89, 1,792,928.14 and 718,477.31 is: 991,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,214.89 : 1,792,928.14 = 718,477.31 : x
  2. Step 2: Convert to fraction form
    1,299,214.89/1,792,928.14 = 718,477.31/x
  3. Step 3: Cross multiply
    1,299,214.89x = 1,792,928.14 × 718,477.31
  4. Step 4: Simplify right side
    1,299,214.89x = 1,288,178,189,736.63
  5. Step 5: Solve for x
    x = 1,288,178,189,736.63/1,299,214.89
  6. Step 6: Final answer
    x = 991,505.10

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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.