Home / 1,208,635.80-1,810,985.40-889,771.20

Finding the Fourth Proportional to 1,208,635.80, 1,810,985.40 and 889,771.20

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Solution

The fourth proportional to 1,208,635.80, 1,810,985.40 and 889,771.20 is: 1,333,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,635.80 : 1,810,985.40 = 889,771.20 : x
  2. Step 2: Convert to fraction form
    1,208,635.80/1,810,985.40 = 889,771.20/x
  3. Step 3: Cross multiply
    1,208,635.80x = 1,810,985.40 × 889,771.20
  4. Step 4: Simplify right side
    1,208,635.80x = 1,611,362,652,540.48
  5. Step 5: Solve for x
    x = 1,611,362,652,540.48/1,208,635.80
  6. Step 6: Final answer
    x = 1,333,207.78

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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.