Home / 1,121,384.41-1,681,873.62-322,469.89

Finding the Fourth Proportional to 1,121,384.41, 1,681,873.62 and 322,469.89

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Solution

The fourth proportional to 1,121,384.41, 1,681,873.62 and 322,469.89 is: 483,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,384.41 : 1,681,873.62 = 322,469.89 : x
  2. Step 2: Convert to fraction form
    1,121,384.41/1,681,873.62 = 322,469.89/x
  3. Step 3: Cross multiply
    1,121,384.41x = 1,681,873.62 × 322,469.89
  4. Step 4: Simplify right side
    1,121,384.41x = 542,353,601,235.30
  5. Step 5: Solve for x
    x = 542,353,601,235.30/1,121,384.41
  6. Step 6: Final answer
    x = 483,646.46

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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.