Home / 850,783.72-1,174,138.42-468,810.50

Finding the Fourth Proportional to 850,783.72, 1,174,138.42 and 468,810.50

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Solution

The fourth proportional to 850,783.72, 1,174,138.42 and 468,810.50 is: 646,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,783.72 : 1,174,138.42 = 468,810.50 : x
  2. Step 2: Convert to fraction form
    850,783.72/1,174,138.42 = 468,810.50/x
  3. Step 3: Cross multiply
    850,783.72x = 1,174,138.42 × 468,810.50
  4. Step 4: Simplify right side
    850,783.72x = 550,448,419,749.41
  5. Step 5: Solve for x
    x = 550,448,419,749.41/850,783.72
  6. Step 6: Final answer
    x = 646,989.84

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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.