Home / 631,283.20-946,118.40-256,883.20

Finding the Fourth Proportional to 631,283.20, 946,118.40 and 256,883.20

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Solution

The fourth proportional to 631,283.20, 946,118.40 and 256,883.20 is: 384,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,283.20 : 946,118.40 = 256,883.20 : x
  2. Step 2: Convert to fraction form
    631,283.20/946,118.40 = 256,883.20/x
  3. Step 3: Cross multiply
    631,283.20x = 946,118.40 × 256,883.20
  4. Step 4: Simplify right side
    631,283.20x = 243,041,922,170.88
  5. Step 5: Solve for x
    x = 243,041,922,170.88/631,283.20
  6. Step 6: Final answer
    x = 384,996.66

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Double scale
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Similar ratio
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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.