Home / 1,298,901.44-1,792,406.76-718,089.80

Finding the Fourth Proportional to 1,298,901.44, 1,792,406.76 and 718,089.80

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Solution

The fourth proportional to 1,298,901.44, 1,792,406.76 and 718,089.80 is: 990,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,901.44 : 1,792,406.76 = 718,089.80 : x
  2. Step 2: Convert to fraction form
    1,298,901.44/1,792,406.76 = 718,089.80/x
  3. Step 3: Cross multiply
    1,298,901.44x = 1,792,406.76 × 718,089.80
  4. Step 4: Simplify right side
    1,298,901.44x = 1,287,109,011,807.05
  5. Step 5: Solve for x
    x = 1,287,109,011,807.05/1,298,901.44
  6. Step 6: Final answer
    x = 990,921.23

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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.