Home / 1,118,190.10-1,677,285.15-978,222.10

Finding the Fourth Proportional to 1,118,190.10, 1,677,285.15 and 978,222.10

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Solution

The fourth proportional to 1,118,190.10, 1,677,285.15 and 978,222.10 is: 1,467,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,190.10 : 1,677,285.15 = 978,222.10 : x
  2. Step 2: Convert to fraction form
    1,118,190.10/1,677,285.15 = 978,222.10/x
  3. Step 3: Cross multiply
    1,118,190.10x = 1,677,285.15 × 978,222.10
  4. Step 4: Simplify right side
    1,118,190.10x = 1,640,757,401,731.82
  5. Step 5: Solve for x
    x = 1,640,757,401,731.82/1,118,190.10
  6. Step 6: Final answer
    x = 1,467,333.15

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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.