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Finding the Fourth Proportional to 551,630.07, 761,179.86 and 322,133.58

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Solution

The fourth proportional to 551,630.07, 761,179.86 and 322,133.58 is: 444,503.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,630.07 : 761,179.86 = 322,133.58 : x
  2. Step 2: Convert to fraction form
    551,630.07/761,179.86 = 322,133.58/x
  3. Step 3: Cross multiply
    551,630.07x = 761,179.86 × 322,133.58
  4. Step 4: Simplify right side
    551,630.07x = 245,201,593,325.70
  5. Step 5: Solve for x
    x = 245,201,593,325.70/551,630.07
  6. Step 6: Final answer
    x = 444,503.67

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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.