Home / 813,656.75-1,220,567.13-214,659.32

Finding the Fourth Proportional to 813,656.75, 1,220,567.13 and 214,659.32

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Solution

The fourth proportional to 813,656.75, 1,220,567.13 and 214,659.32 is: 322,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,656.75 : 1,220,567.13 = 214,659.32 : x
  2. Step 2: Convert to fraction form
    813,656.75/1,220,567.13 = 214,659.32/x
  3. Step 3: Cross multiply
    813,656.75x = 1,220,567.13 × 214,659.32
  4. Step 4: Simplify right side
    813,656.75x = 262,006,104,037.32
  5. Step 5: Solve for x
    x = 262,006,104,037.32/813,656.75
  6. Step 6: Final answer
    x = 322,010.61

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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.