Home / 389,727.13-537,825.06-210,879.13

Finding the Fourth Proportional to 389,727.13, 537,825.06 and 210,879.13

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Solution

The fourth proportional to 389,727.13, 537,825.06 and 210,879.13 is: 291,014.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,727.13 : 537,825.06 = 210,879.13 : x
  2. Step 2: Convert to fraction form
    389,727.13/537,825.06 = 210,879.13/x
  3. Step 3: Cross multiply
    389,727.13x = 537,825.06 × 210,879.13
  4. Step 4: Simplify right side
    389,727.13x = 113,416,080,745.00
  5. Step 5: Solve for x
    x = 113,416,080,745.00/389,727.13
  6. Step 6: Final answer
    x = 291,014.08

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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.