Home / 682,660.57-942,425.77-498,692.56

Finding the Fourth Proportional to 682,660.57, 942,425.77 and 498,692.56

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Solution

The fourth proportional to 682,660.57, 942,425.77 and 498,692.56 is: 688,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,660.57 : 942,425.77 = 498,692.56 : x
  2. Step 2: Convert to fraction form
    682,660.57/942,425.77 = 498,692.56/x
  3. Step 3: Cross multiply
    682,660.57x = 942,425.77 × 498,692.56
  4. Step 4: Simplify right side
    682,660.57x = 469,980,719,851.27
  5. Step 5: Solve for x
    x = 469,980,719,851.27/682,660.57
  6. Step 6: Final answer
    x = 688,454.47

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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.