Home / 679,123.64-936,986.24-407,092.28

Finding the Fourth Proportional to 679,123.64, 936,986.24 and 407,092.28

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Solution

The fourth proportional to 679,123.64, 936,986.24 and 407,092.28 is: 561,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,123.64 : 936,986.24 = 407,092.28 : x
  2. Step 2: Convert to fraction form
    679,123.64/936,986.24 = 407,092.28/x
  3. Step 3: Cross multiply
    679,123.64x = 936,986.24 × 407,092.28
  4. Step 4: Simplify right side
    679,123.64x = 381,439,861,103.03
  5. Step 5: Solve for x
    x = 381,439,861,103.03/679,123.64
  6. Step 6: Final answer
    x = 561,664.82

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