Home / 1,871,629.20-2,808,415.80-874,357.20

Finding the Fourth Proportional to 1,871,629.20, 2,808,415.80 and 874,357.20

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Solution

The fourth proportional to 1,871,629.20, 2,808,415.80 and 874,357.20 is: 1,311,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,629.20 : 2,808,415.80 = 874,357.20 : x
  2. Step 2: Convert to fraction form
    1,871,629.20/2,808,415.80 = 874,357.20/x
  3. Step 3: Cross multiply
    1,871,629.20x = 2,808,415.80 × 874,357.20
  4. Step 4: Simplify right side
    1,871,629.20x = 2,455,558,575,323.76
  5. Step 5: Solve for x
    x = 2,455,558,575,323.76/1,871,629.20
  6. Step 6: Final answer
    x = 1,311,989.88

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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.