Home / 812,484.54-1,218,840.24-339,061.44

Finding the Fourth Proportional to 812,484.54, 1,218,840.24 and 339,061.44

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Solution

The fourth proportional to 812,484.54, 1,218,840.24 and 339,061.44 is: 508,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,484.54 : 1,218,840.24 = 339,061.44 : x
  2. Step 2: Convert to fraction form
    812,484.54/1,218,840.24 = 339,061.44/x
  3. Step 3: Cross multiply
    812,484.54x = 1,218,840.24 × 339,061.44
  4. Step 4: Simplify right side
    812,484.54x = 413,261,726,904.35
  5. Step 5: Solve for x
    x = 413,261,726,904.35/812,484.54
  6. Step 6: Final answer
    x = 508,639.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.