Home / 940,439.40-1,410,659.10-309,271.20

Finding the Fourth Proportional to 940,439.40, 1,410,659.10 and 309,271.20

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Solution

The fourth proportional to 940,439.40, 1,410,659.10 and 309,271.20 is: 463,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,439.40 : 1,410,659.10 = 309,271.20 : x
  2. Step 2: Convert to fraction form
    940,439.40/1,410,659.10 = 309,271.20/x
  3. Step 3: Cross multiply
    940,439.40x = 1,410,659.10 × 309,271.20
  4. Step 4: Simplify right side
    940,439.40x = 436,276,232,647.92
  5. Step 5: Solve for x
    x = 436,276,232,647.92/940,439.40
  6. Step 6: Final answer
    x = 463,906.80

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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.