Home / 1,189,113.60-1,783,942.84-515,308

Finding the Fourth Proportional to 1,189,113.60, 1,783,942.84 and 515,308

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Solution

The fourth proportional to 1,189,113.60, 1,783,942.84 and 515,308 is: 773,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,113.60 : 1,783,942.84 = 515,308 : x
  2. Step 2: Convert to fraction form
    1,189,113.60/1,783,942.84 = 515,308/x
  3. Step 3: Cross multiply
    1,189,113.60x = 1,783,942.84 × 515,308
  4. Step 4: Simplify right side
    1,189,113.60x = 919,280,016,994.72
  5. Step 5: Solve for x
    x = 919,280,016,994.72/1,189,113.60
  6. Step 6: Final answer
    x = 773,080.06

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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.