Home / 726,820-1,090,144.12-194,382.28

Finding the Fourth Proportional to 726,820, 1,090,144.12 and 194,382.28

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Solution

The fourth proportional to 726,820, 1,090,144.12 and 194,382.28 is: 291,550.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,820 : 1,090,144.12 = 194,382.28 : x
  2. Step 2: Convert to fraction form
    726,820/1,090,144.12 = 194,382.28/x
  3. Step 3: Cross multiply
    726,820x = 1,090,144.12 × 194,382.28
  4. Step 4: Simplify right side
    726,820x = 211,904,699,574.19
  5. Step 5: Solve for x
    x = 211,904,699,574.19/726,820
  6. Step 6: Final answer
    x = 291,550.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.