Home / 789,957.75-1,090,169.73-445,877.46

Finding the Fourth Proportional to 789,957.75, 1,090,169.73 and 445,877.46

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Solution

The fourth proportional to 789,957.75, 1,090,169.73 and 445,877.46 is: 615,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,957.75 : 1,090,169.73 = 445,877.46 : x
  2. Step 2: Convert to fraction form
    789,957.75/1,090,169.73 = 445,877.46/x
  3. Step 3: Cross multiply
    789,957.75x = 1,090,169.73 × 445,877.46
  4. Step 4: Simplify right side
    789,957.75x = 486,082,110,181.29
  5. Step 5: Solve for x
    x = 486,082,110,181.29/789,957.75
  6. Step 6: Final answer
    x = 615,326.72

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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.