Home / 674,883.20-931,321.86-368,960.60

Finding the Fourth Proportional to 674,883.20, 931,321.86 and 368,960.60

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Solution

The fourth proportional to 674,883.20, 931,321.86 and 368,960.60 is: 509,156.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,883.20 : 931,321.86 = 368,960.60 : x
  2. Step 2: Convert to fraction form
    674,883.20/931,321.86 = 368,960.60/x
  3. Step 3: Cross multiply
    674,883.20x = 931,321.86 × 368,960.60
  4. Step 4: Simplify right side
    674,883.20x = 343,621,072,258.72
  5. Step 5: Solve for x
    x = 343,621,072,258.72/674,883.20
  6. Step 6: Final answer
    x = 509,156.36

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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.