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Finding the Fourth Proportional to 682,864.85, 942,707.41 and 498,896.84

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Solution

The fourth proportional to 682,864.85, 942,707.41 and 498,896.84 is: 688,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,864.85 : 942,707.41 = 498,896.84 : x
  2. Step 2: Convert to fraction form
    682,864.85/942,707.41 = 498,896.84/x
  3. Step 3: Cross multiply
    682,864.85x = 942,707.41 × 498,896.84
  4. Step 4: Simplify right side
    682,864.85x = 470,313,747,893.58
  5. Step 5: Solve for x
    x = 470,313,747,893.58/682,864.85
  6. Step 6: Final answer
    x = 688,736.21

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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.