Home / 1,288,983.49-1,933,462.92-783,683.98

Finding the Fourth Proportional to 1,288,983.49, 1,933,462.92 and 783,683.98

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Solution

The fourth proportional to 1,288,983.49, 1,933,462.92 and 783,683.98 is: 1,175,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,983.49 : 1,933,462.92 = 783,683.98 : x
  2. Step 2: Convert to fraction form
    1,288,983.49/1,933,462.92 = 783,683.98/x
  3. Step 3: Cross multiply
    1,288,983.49x = 1,933,462.92 × 783,683.98
  4. Step 4: Simplify right side
    1,288,983.49x = 1,515,223,916,328.02
  5. Step 5: Solve for x
    x = 1,515,223,916,328.02/1,288,983.49
  6. Step 6: Final answer
    x = 1,175,518.48

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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.