Home / 1,308,456.60-1,962,749.70-678,600.60

Finding the Fourth Proportional to 1,308,456.60, 1,962,749.70 and 678,600.60

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Solution

The fourth proportional to 1,308,456.60, 1,962,749.70 and 678,600.60 is: 1,017,934.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,456.60 : 1,962,749.70 = 678,600.60 : x
  2. Step 2: Convert to fraction form
    1,308,456.60/1,962,749.70 = 678,600.60/x
  3. Step 3: Cross multiply
    1,308,456.60x = 1,962,749.70 × 678,600.60
  4. Step 4: Simplify right side
    1,308,456.60x = 1,331,923,124,069.82
  5. Step 5: Solve for x
    x = 1,331,923,124,069.82/1,308,456.60
  6. Step 6: Final answer
    x = 1,017,934.51

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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.