Home / 1,090,367.70-1,634,903.55-669,945.30

Finding the Fourth Proportional to 1,090,367.70, 1,634,903.55 and 669,945.30

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Solution

The fourth proportional to 1,090,367.70, 1,634,903.55 and 669,945.30 is: 1,004,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,367.70 : 1,634,903.55 = 669,945.30 : x
  2. Step 2: Convert to fraction form
    1,090,367.70/1,634,903.55 = 669,945.30/x
  3. Step 3: Cross multiply
    1,090,367.70x = 1,634,903.55 × 669,945.30
  4. Step 4: Simplify right side
    1,090,367.70x = 1,095,295,949,275.82
  5. Step 5: Solve for x
    x = 1,095,295,949,275.82/1,090,367.70
  6. Step 6: Final answer
    x = 1,004,519.80

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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.