Home / 1,080,858.20-1,616,621.70-912,896.60

Finding the Fourth Proportional to 1,080,858.20, 1,616,621.70 and 912,896.60

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Solution

The fourth proportional to 1,080,858.20, 1,616,621.70 and 912,896.60 is: 1,365,404.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,858.20 : 1,616,621.70 = 912,896.60 : x
  2. Step 2: Convert to fraction form
    1,080,858.20/1,616,621.70 = 912,896.60/x
  3. Step 3: Cross multiply
    1,080,858.20x = 1,616,621.70 × 912,896.60
  4. Step 4: Simplify right side
    1,080,858.20x = 1,475,808,453,416.22
  5. Step 5: Solve for x
    x = 1,475,808,453,416.22/1,080,858.20
  6. Step 6: Final answer
    x = 1,365,404.32

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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.