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Finding the Fourth Proportional to 670,374.17, 925,097.09 and 380,012.58

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Solution

The fourth proportional to 670,374.17, 925,097.09 and 380,012.58 is: 524,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,374.17 : 925,097.09 = 380,012.58 : x
  2. Step 2: Convert to fraction form
    670,374.17/925,097.09 = 380,012.58/x
  3. Step 3: Cross multiply
    670,374.17x = 925,097.09 × 380,012.58
  4. Step 4: Simplify right side
    670,374.17x = 351,548,530,021.33
  5. Step 5: Solve for x
    x = 351,548,530,021.33/670,374.17
  6. Step 6: Final answer
    x = 524,406.43

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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.