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Finding the Fourth Proportional to 673,682.27, 929,648.88 and 383,266.49

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Solution

The fourth proportional to 673,682.27, 929,648.88 and 383,266.49 is: 528,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,682.27 : 929,648.88 = 383,266.49 : x
  2. Step 2: Convert to fraction form
    673,682.27/929,648.88 = 383,266.49/x
  3. Step 3: Cross multiply
    673,682.27x = 929,648.88 × 383,266.49
  4. Step 4: Simplify right side
    673,682.27x = 356,303,258,521.79
  5. Step 5: Solve for x
    x = 356,303,258,521.79/673,682.27
  6. Step 6: Final answer
    x = 528,889.18

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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.