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Finding the Fourth Proportional to 670,573.30, 925,321.17 and 384,105.46

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Solution

The fourth proportional to 670,573.30, 925,321.17 and 384,105.46 is: 530,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,573.30 : 925,321.17 = 384,105.46 : x
  2. Step 2: Convert to fraction form
    670,573.30/925,321.17 = 384,105.46/x
  3. Step 3: Cross multiply
    670,573.30x = 925,321.17 × 384,105.46
  4. Step 4: Simplify right side
    670,573.30x = 355,420,913,650.59
  5. Step 5: Solve for x
    x = 355,420,913,650.59/670,573.30
  6. Step 6: Final answer
    x = 530,025.45

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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.