Home / 695,652.12-959,782.03-389,687.18

Finding the Fourth Proportional to 695,652.12, 959,782.03 and 389,687.18

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Solution

The fourth proportional to 695,652.12, 959,782.03 and 389,687.18 is: 537,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,652.12 : 959,782.03 = 389,687.18 : x
  2. Step 2: Convert to fraction form
    695,652.12/959,782.03 = 389,687.18/x
  3. Step 3: Cross multiply
    695,652.12x = 959,782.03 × 389,687.18
  4. Step 4: Simplify right side
    695,652.12x = 374,014,746,912.25
  5. Step 5: Solve for x
    x = 374,014,746,912.25/695,652.12
  6. Step 6: Final answer
    x = 537,646.24

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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.