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Finding the Fourth Proportional to 670,706.64, 925,706.66 and 384,418.60

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Solution

The fourth proportional to 670,706.64, 925,706.66 and 384,418.60 is: 530,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,706.64 : 925,706.66 = 384,418.60 : x
  2. Step 2: Convert to fraction form
    670,706.64/925,706.66 = 384,418.60/x
  3. Step 3: Cross multiply
    670,706.64x = 925,706.66 × 384,418.60
  4. Step 4: Simplify right side
    670,706.64x = 355,858,858,247.88
  5. Step 5: Solve for x
    x = 355,858,858,247.88/670,706.64
  6. Step 6: Final answer
    x = 530,573.04

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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.