Home / 2,059,611.60-3,090,000.60-639,811.20

Finding the Fourth Proportional to 2,059,611.60, 3,090,000.60 and 639,811.20

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Solution

The fourth proportional to 2,059,611.60, 3,090,000.60 and 639,811.20 is: 959,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059,611.60 : 3,090,000.60 = 639,811.20 : x
  2. Step 2: Convert to fraction form
    2,059,611.60/3,090,000.60 = 639,811.20/x
  3. Step 3: Cross multiply
    2,059,611.60x = 3,090,000.60 × 639,811.20
  4. Step 4: Simplify right side
    2,059,611.60x = 1,977,016,991,886.72
  5. Step 5: Solve for x
    x = 1,977,016,991,886.72/2,059,611.60
  6. Step 6: Final answer
    x = 959,897.97

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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.