Home / 993,000.60-1,489,889.70-361,978.20

Finding the Fourth Proportional to 993,000.60, 1,489,889.70 and 361,978.20

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Solution

The fourth proportional to 993,000.60, 1,489,889.70 and 361,978.20 is: 543,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,000.60 : 1,489,889.70 = 361,978.20 : x
  2. Step 2: Convert to fraction form
    993,000.60/1,489,889.70 = 361,978.20/x
  3. Step 3: Cross multiply
    993,000.60x = 1,489,889.70 × 361,978.20
  4. Step 4: Simplify right side
    993,000.60x = 539,307,591,804.54
  5. Step 5: Solve for x
    x = 539,307,591,804.54/993,000.60
  6. Step 6: Final answer
    x = 543,109.03

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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.