Home / 1,187,956.28-1,782,112.24-429,975.09

Finding the Fourth Proportional to 1,187,956.28, 1,782,112.24 and 429,975.09

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Solution

The fourth proportional to 1,187,956.28, 1,782,112.24 and 429,975.09 is: 645,027.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,956.28 : 1,782,112.24 = 429,975.09 : x
  2. Step 2: Convert to fraction form
    1,187,956.28/1,782,112.24 = 429,975.09/x
  3. Step 3: Cross multiply
    1,187,956.28x = 1,782,112.24 × 429,975.09
  4. Step 4: Simplify right side
    1,187,956.28x = 766,263,871,321.57
  5. Step 5: Solve for x
    x = 766,263,871,321.57/1,187,956.28
  6. Step 6: Final answer
    x = 645,027.00

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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.