Home / 631,245.20-946,061.40-256,845.20

Finding the Fourth Proportional to 631,245.20, 946,061.40 and 256,845.20

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Solution

The fourth proportional to 631,245.20, 946,061.40 and 256,845.20 is: 384,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,245.20 : 946,061.40 = 256,845.20 : x
  2. Step 2: Convert to fraction form
    631,245.20/946,061.40 = 256,845.20/x
  3. Step 3: Cross multiply
    631,245.20x = 946,061.40 × 256,845.20
  4. Step 4: Simplify right side
    631,245.20x = 242,991,329,495.28
  5. Step 5: Solve for x
    x = 242,991,329,495.28/631,245.20
  6. Step 6: Final answer
    x = 384,939.69

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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.