Home / 1,294,880.60-1,942,320.90-1,286,586.20

Finding the Fourth Proportional to 1,294,880.60, 1,942,320.90 and 1,286,586.20

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Solution

The fourth proportional to 1,294,880.60, 1,942,320.90 and 1,286,586.20 is: 1,929,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,880.60 : 1,942,320.90 = 1,286,586.20 : x
  2. Step 2: Convert to fraction form
    1,294,880.60/1,942,320.90 = 1,286,586.20/x
  3. Step 3: Cross multiply
    1,294,880.60x = 1,942,320.90 × 1,286,586.20
  4. Step 4: Simplify right side
    1,294,880.60x = 2,498,963,265,911.58
  5. Step 5: Solve for x
    x = 2,498,963,265,911.58/1,294,880.60
  6. Step 6: Final answer
    x = 1,929,879.30

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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.