Home / 1,200,289.28-1,655,835.36-856,201.28

Finding the Fourth Proportional to 1,200,289.28, 1,655,835.36 and 856,201.28

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Solution

The fourth proportional to 1,200,289.28, 1,655,835.36 and 856,201.28 is: 1,181,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,289.28 : 1,655,835.36 = 856,201.28 : x
  2. Step 2: Convert to fraction form
    1,200,289.28/1,655,835.36 = 856,201.28/x
  3. Step 3: Cross multiply
    1,200,289.28x = 1,655,835.36 × 856,201.28
  4. Step 4: Simplify right side
    1,200,289.28x = 1,417,728,354,701.26
  5. Step 5: Solve for x
    x = 1,417,728,354,701.26/1,200,289.28
  6. Step 6: Final answer
    x = 1,181,155.56

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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.