Home / 1,989,353.07-2,984,611.89-641,488.57

Finding the Fourth Proportional to 1,989,353.07, 2,984,611.89 and 641,488.57

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Solution

The fourth proportional to 1,989,353.07, 2,984,611.89 and 641,488.57 is: 962,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,353.07 : 2,984,611.89 = 641,488.57 : x
  2. Step 2: Convert to fraction form
    1,989,353.07/2,984,611.89 = 641,488.57/x
  3. Step 3: Cross multiply
    1,989,353.07x = 2,984,611.89 × 641,488.57
  4. Step 4: Simplify right side
    1,989,353.07x = 1,914,594,408,265.15
  5. Step 5: Solve for x
    x = 1,914,594,408,265.15/1,989,353.07
  6. Step 6: Final answer
    x = 962,420.62

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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.