Home / 1,643,523.89-2,268,019.47-918,377.57

Finding the Fourth Proportional to 1,643,523.89, 2,268,019.47 and 918,377.57

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Solution

The fourth proportional to 1,643,523.89, 2,268,019.47 and 918,377.57 is: 1,267,336.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,523.89 : 2,268,019.47 = 918,377.57 : x
  2. Step 2: Convert to fraction form
    1,643,523.89/2,268,019.47 = 918,377.57/x
  3. Step 3: Cross multiply
    1,643,523.89x = 2,268,019.47 × 918,377.57
  4. Step 4: Simplify right side
    1,643,523.89x = 2,082,898,204,557.64
  5. Step 5: Solve for x
    x = 2,082,898,204,557.64/1,643,523.89
  6. Step 6: Final answer
    x = 1,267,336.73

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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.