Home / 1,269,812.91-1,752,420.56-839,346.51

Finding the Fourth Proportional to 1,269,812.91, 1,752,420.56 and 839,346.51

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Solution

The fourth proportional to 1,269,812.91, 1,752,420.56 and 839,346.51 is: 1,158,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,812.91 : 1,752,420.56 = 839,346.51 : x
  2. Step 2: Convert to fraction form
    1,269,812.91/1,752,420.56 = 839,346.51/x
  3. Step 3: Cross multiply
    1,269,812.91x = 1,752,420.56 × 839,346.51
  4. Step 4: Simplify right side
    1,269,812.91x = 1,470,888,076,891.51
  5. Step 5: Solve for x
    x = 1,470,888,076,891.51/1,269,812.91
  6. Step 6: Final answer
    x = 1,158,350.23

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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.