Home / 631,140.62-946,719.30-210,416.64

Finding the Fourth Proportional to 631,140.62, 946,719.30 and 210,416.64

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Solution

The fourth proportional to 631,140.62, 946,719.30 and 210,416.64 is: 315,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,140.62 : 946,719.30 = 210,416.64 : x
  2. Step 2: Convert to fraction form
    631,140.62/946,719.30 = 210,416.64/x
  3. Step 3: Cross multiply
    631,140.62x = 946,719.30 × 210,416.64
  4. Step 4: Simplify right side
    631,140.62x = 199,205,494,129.15
  5. Step 5: Solve for x
    x = 199,205,494,129.15/631,140.62
  6. Step 6: Final answer
    x = 315,627.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.