Home / 1,360,988-2,040,816.72-821,800.16

Finding the Fourth Proportional to 1,360,988, 2,040,816.72 and 821,800.16

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Solution

The fourth proportional to 1,360,988, 2,040,816.72 and 821,800.16 is: 1,232,298.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,988 : 2,040,816.72 = 821,800.16 : x
  2. Step 2: Convert to fraction form
    1,360,988/2,040,816.72 = 821,800.16/x
  3. Step 3: Cross multiply
    1,360,988x = 2,040,816.72 × 821,800.16
  4. Step 4: Simplify right side
    1,360,988x = 1,677,143,507,026.68
  5. Step 5: Solve for x
    x = 1,677,143,507,026.68/1,360,988
  6. Step 6: Final answer
    x = 1,232,298.53

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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.