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Finding the Fourth Proportional to 670,729.68, 925,606.44 and 384,235.92

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Solution

The fourth proportional to 670,729.68, 925,606.44 and 384,235.92 is: 530,245.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,729.68 : 925,606.44 = 384,235.92 : x
  2. Step 2: Convert to fraction form
    670,729.68/925,606.44 = 384,235.92/x
  3. Step 3: Cross multiply
    670,729.68x = 925,606.44 × 384,235.92
  4. Step 4: Simplify right side
    670,729.68x = 355,651,242,031.33
  5. Step 5: Solve for x
    x = 355,651,242,031.33/670,729.68
  6. Step 6: Final answer
    x = 530,245.27

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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.