Home / 808,627.80-1,212,941.70-209,584.20

Finding the Fourth Proportional to 808,627.80, 1,212,941.70 and 209,584.20

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Solution

The fourth proportional to 808,627.80, 1,212,941.70 and 209,584.20 is: 314,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,627.80 : 1,212,941.70 = 209,584.20 : x
  2. Step 2: Convert to fraction form
    808,627.80/1,212,941.70 = 209,584.20/x
  3. Step 3: Cross multiply
    808,627.80x = 1,212,941.70 × 209,584.20
  4. Step 4: Simplify right side
    808,627.80x = 254,213,415,841.14
  5. Step 5: Solve for x
    x = 254,213,415,841.14/808,627.80
  6. Step 6: Final answer
    x = 314,376.30

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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.