Home / 1,356,516.42-1,871,923.91-805,255.69

Finding the Fourth Proportional to 1,356,516.42, 1,871,923.91 and 805,255.69

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Solution

The fourth proportional to 1,356,516.42, 1,871,923.91 and 805,255.69 is: 1,111,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,516.42 : 1,871,923.91 = 805,255.69 : x
  2. Step 2: Convert to fraction form
    1,356,516.42/1,871,923.91 = 805,255.69/x
  3. Step 3: Cross multiply
    1,356,516.42x = 1,871,923.91 × 805,255.69
  4. Step 4: Simplify right side
    1,356,516.42x = 1,507,377,368,968.84
  5. Step 5: Solve for x
    x = 1,507,377,368,968.84/1,356,516.42
  6. Step 6: Final answer
    x = 1,111,212.04

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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.