Home / 1,221,222.24-1,832,000.28-422,289.36

Finding the Fourth Proportional to 1,221,222.24, 1,832,000.28 and 422,289.36

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Solution

The fourth proportional to 1,221,222.24, 1,832,000.28 and 422,289.36 is: 633,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,222.24 : 1,832,000.28 = 422,289.36 : x
  2. Step 2: Convert to fraction form
    1,221,222.24/1,832,000.28 = 422,289.36/x
  3. Step 3: Cross multiply
    1,221,222.24x = 1,832,000.28 × 422,289.36
  4. Step 4: Simplify right side
    1,221,222.24x = 773,634,225,761.02
  5. Step 5: Solve for x
    x = 773,634,225,761.02/1,221,222.24
  6. Step 6: Final answer
    x = 633,491.76

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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.