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Finding the Fourth Proportional to 673,683.69, 929,650.84 and 383,267.91

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Solution

The fourth proportional to 673,683.69, 929,650.84 and 383,267.91 is: 528,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,683.69 : 929,650.84 = 383,267.91 : x
  2. Step 2: Convert to fraction form
    673,683.69/929,650.84 = 383,267.91/x
  3. Step 3: Cross multiply
    673,683.69x = 929,650.84 × 383,267.91
  4. Step 4: Simplify right side
    673,683.69x = 356,305,334,476.54
  5. Step 5: Solve for x
    x = 356,305,334,476.54/673,683.69
  6. Step 6: Final answer
    x = 528,891.14

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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.