Home / 790,028.95-1,090,243.66-445,879.38

Finding the Fourth Proportional to 790,028.95, 1,090,243.66 and 445,879.38

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Solution

The fourth proportional to 790,028.95, 1,090,243.66 and 445,879.38 is: 615,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,028.95 : 1,090,243.66 = 445,879.38 : x
  2. Step 2: Convert to fraction form
    790,028.95/1,090,243.66 = 445,879.38/x
  3. Step 3: Cross multiply
    790,028.95x = 1,090,243.66 × 445,879.38
  4. Step 4: Simplify right side
    790,028.95x = 486,117,167,169.73
  5. Step 5: Solve for x
    x = 486,117,167,169.73/790,028.95
  6. Step 6: Final answer
    x = 615,315.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.