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Finding the Fourth Proportional to 557,087.22, 768,533.67 and 330,601.50

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Solution

The fourth proportional to 557,087.22, 768,533.67 and 330,601.50 is: 456,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,087.22 : 768,533.67 = 330,601.50 : x
  2. Step 2: Convert to fraction form
    557,087.22/768,533.67 = 330,601.50/x
  3. Step 3: Cross multiply
    557,087.22x = 768,533.67 × 330,601.50
  4. Step 4: Simplify right side
    557,087.22x = 254,078,384,102.51
  5. Step 5: Solve for x
    x = 254,078,384,102.51/557,087.22
  6. Step 6: Final answer
    x = 456,083.67

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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.