Home / 1,989,021.60-2,983,532.40-659,325.60

Finding the Fourth Proportional to 1,989,021.60, 2,983,532.40 and 659,325.60

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Solution

The fourth proportional to 1,989,021.60, 2,983,532.40 and 659,325.60 is: 988,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,021.60 : 2,983,532.40 = 659,325.60 : x
  2. Step 2: Convert to fraction form
    1,989,021.60/2,983,532.40 = 659,325.60/x
  3. Step 3: Cross multiply
    1,989,021.60x = 2,983,532.40 × 659,325.60
  4. Step 4: Simplify right side
    1,989,021.60x = 1,967,119,289,749.44
  5. Step 5: Solve for x
    x = 1,967,119,289,749.44/1,989,021.60
  6. Step 6: Final answer
    x = 988,988.40

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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.