Home / 940,000.80-1,410,001.20-308,978.40

Finding the Fourth Proportional to 940,000.80, 1,410,001.20 and 308,978.40

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Solution

The fourth proportional to 940,000.80, 1,410,001.20 and 308,978.40 is: 463,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,000.80 : 1,410,001.20 = 308,978.40 : x
  2. Step 2: Convert to fraction form
    940,000.80/1,410,001.20 = 308,978.40/x
  3. Step 3: Cross multiply
    940,000.80x = 1,410,001.20 × 308,978.40
  4. Step 4: Simplify right side
    940,000.80x = 435,659,914,774.08
  5. Step 5: Solve for x
    x = 435,659,914,774.08/940,000.80
  6. Step 6: Final answer
    x = 463,467.60

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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.