Home / 1,188,009.10-1,782,451.05-478,546.30

Finding the Fourth Proportional to 1,188,009.10, 1,782,451.05 and 478,546.30

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Solution

The fourth proportional to 1,188,009.10, 1,782,451.05 and 478,546.30 is: 717,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,009.10 : 1,782,451.05 = 478,546.30 : x
  2. Step 2: Convert to fraction form
    1,188,009.10/1,782,451.05 = 478,546.30/x
  3. Step 3: Cross multiply
    1,188,009.10x = 1,782,451.05 × 478,546.30
  4. Step 4: Simplify right side
    1,188,009.10x = 852,985,354,908.62
  5. Step 5: Solve for x
    x = 852,985,354,908.62/1,188,009.10
  6. Step 6: Final answer
    x = 717,995.64

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Double scale
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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.