Home / 986,038.29-1,479,249.13-378,782.20

Finding the Fourth Proportional to 986,038.29, 1,479,249.13 and 378,782.20

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Solution

The fourth proportional to 986,038.29, 1,479,249.13 and 378,782.20 is: 568,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,038.29 : 1,479,249.13 = 378,782.20 : x
  2. Step 2: Convert to fraction form
    986,038.29/1,479,249.13 = 378,782.20/x
  3. Step 3: Cross multiply
    986,038.29x = 1,479,249.13 × 378,782.20
  4. Step 4: Simplify right side
    986,038.29x = 560,313,232,413.24
  5. Step 5: Solve for x
    x = 560,313,232,413.24/986,038.29
  6. Step 6: Final answer
    x = 568,246.93

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1.5x scale

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.