Home / 1,190,830.26-1,786,522.20-392,118.78

Finding the Fourth Proportional to 1,190,830.26, 1,786,522.20 and 392,118.78

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Solution

The fourth proportional to 1,190,830.26, 1,786,522.20 and 392,118.78 is: 588,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,830.26 : 1,786,522.20 = 392,118.78 : x
  2. Step 2: Convert to fraction form
    1,190,830.26/1,786,522.20 = 392,118.78/x
  3. Step 3: Cross multiply
    1,190,830.26x = 1,786,522.20 × 392,118.78
  4. Step 4: Simplify right side
    1,190,830.26x = 700,528,905,506.92
  5. Step 5: Solve for x
    x = 700,528,905,506.92/1,190,830.26
  6. Step 6: Final answer
    x = 588,269.32

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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.