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Finding the Fourth Proportional to 670,707.92, 925,644.84 and 384,266

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Solution

The fourth proportional to 670,707.92, 925,644.84 and 384,266 is: 530,325.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,707.92 : 925,644.84 = 384,266 : x
  2. Step 2: Convert to fraction form
    670,707.92/925,644.84 = 384,266/x
  3. Step 3: Cross multiply
    670,707.92x = 925,644.84 × 384,266
  4. Step 4: Simplify right side
    670,707.92x = 355,693,840,087.44
  5. Step 5: Solve for x
    x = 355,693,840,087.44/670,707.92
  6. Step 6: Final answer
    x = 530,325.99

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1.5x scale

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.