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Finding the Fourth Proportional to 450,738, 621,994.78 and 246,749.82

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Solution

The fourth proportional to 450,738, 621,994.78 and 246,749.82 is: 340,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,738 : 621,994.78 = 246,749.82 : x
  2. Step 2: Convert to fraction form
    450,738/621,994.78 = 246,749.82/x
  3. Step 3: Cross multiply
    450,738x = 621,994.78 × 246,749.82
  4. Step 4: Simplify right side
    450,738x = 153,477,100,005.94
  5. Step 5: Solve for x
    x = 153,477,100,005.94/450,738
  6. Step 6: Final answer
    x = 340,501.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.