Home / 3,985,685.60-5,979,403.20-1,964,897.60

Finding the Fourth Proportional to 3,985,685.60, 5,979,403.20 and 1,964,897.60

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Solution

The fourth proportional to 3,985,685.60, 5,979,403.20 and 1,964,897.60 is: 2,947,777.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,685.60 : 5,979,403.20 = 1,964,897.60 : x
  2. Step 2: Convert to fraction form
    3,985,685.60/5,979,403.20 = 1,964,897.60/x
  3. Step 3: Cross multiply
    3,985,685.60x = 5,979,403.20 × 1,964,897.60
  4. Step 4: Simplify right side
    3,985,685.60x = 11,748,914,997,112.32
  5. Step 5: Solve for x
    x = 11,748,914,997,112.32/3,985,685.60
  6. Step 6: Final answer
    x = 2,947,777.67

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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.