Home / 694,856.18-958,820.95-388,949.69

Finding the Fourth Proportional to 694,856.18, 958,820.95 and 388,949.69

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Solution

The fourth proportional to 694,856.18, 958,820.95 and 388,949.69 is: 536,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,856.18 : 958,820.95 = 388,949.69 : x
  2. Step 2: Convert to fraction form
    694,856.18/958,820.95 = 388,949.69/x
  3. Step 3: Cross multiply
    694,856.18x = 958,820.95 × 388,949.69
  4. Step 4: Simplify right side
    694,856.18x = 372,933,111,268.01
  5. Step 5: Solve for x
    x = 372,933,111,268.01/694,856.18
  6. Step 6: Final answer
    x = 536,705.47

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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.