Home / 1,390,016.63-2,085,083.26-491,465.81

Finding the Fourth Proportional to 1,390,016.63, 2,085,083.26 and 491,465.81

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Solution

The fourth proportional to 1,390,016.63, 2,085,083.26 and 491,465.81 is: 737,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,016.63 : 2,085,083.26 = 491,465.81 : x
  2. Step 2: Convert to fraction form
    1,390,016.63/2,085,083.26 = 491,465.81/x
  3. Step 3: Cross multiply
    1,390,016.63x = 2,085,083.26 × 491,465.81
  4. Step 4: Simplify right side
    1,390,016.63x = 1,024,747,137,277.38
  5. Step 5: Solve for x
    x = 1,024,747,137,277.38/1,390,016.63
  6. Step 6: Final answer
    x = 737,219.33

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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.