Home / 1,122,559.64-1,548,961.46-639,145.16

Finding the Fourth Proportional to 1,122,559.64, 1,548,961.46 and 639,145.16

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Solution

The fourth proportional to 1,122,559.64, 1,548,961.46 and 639,145.16 is: 881,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,559.64 : 1,548,961.46 = 639,145.16 : x
  2. Step 2: Convert to fraction form
    1,122,559.64/1,548,961.46 = 639,145.16/x
  3. Step 3: Cross multiply
    1,122,559.64x = 1,548,961.46 × 639,145.16
  4. Step 4: Simplify right side
    1,122,559.64x = 990,011,220,185.53
  5. Step 5: Solve for x
    x = 990,011,220,185.53/1,122,559.64
  6. Step 6: Final answer
    x = 881,923.05

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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.