Home / 682,800.03-942,123.38-392,355.47

Finding the Fourth Proportional to 682,800.03, 942,123.38 and 392,355.47

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Solution

The fourth proportional to 682,800.03, 942,123.38 and 392,355.47 is: 541,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,800.03 : 942,123.38 = 392,355.47 : x
  2. Step 2: Convert to fraction form
    682,800.03/942,123.38 = 392,355.47/x
  3. Step 3: Cross multiply
    682,800.03x = 942,123.38 × 392,355.47
  4. Step 4: Simplify right side
    682,800.03x = 369,647,261,951.42
  5. Step 5: Solve for x
    x = 369,647,261,951.42/682,800.03
  6. Step 6: Final answer
    x = 541,369.72

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Double scale
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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.