Home / 1,260,147.20-1,890,220.80-1,149,922.40

Finding the Fourth Proportional to 1,260,147.20, 1,890,220.80 and 1,149,922.40

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Solution

The fourth proportional to 1,260,147.20, 1,890,220.80 and 1,149,922.40 is: 1,724,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,147.20 : 1,890,220.80 = 1,149,922.40 : x
  2. Step 2: Convert to fraction form
    1,260,147.20/1,890,220.80 = 1,149,922.40/x
  3. Step 3: Cross multiply
    1,260,147.20x = 1,890,220.80 × 1,149,922.40
  4. Step 4: Simplify right side
    1,260,147.20x = 2,173,607,238,865.92
  5. Step 5: Solve for x
    x = 2,173,607,238,865.92/1,260,147.20
  6. Step 6: Final answer
    x = 1,724,883.60

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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.