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Finding the Fourth Proportional to 607,930.96, 838,927.56 and 339,658.96

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Solution

The fourth proportional to 607,930.96, 838,927.56 and 339,658.96 is: 468,719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,930.96 : 838,927.56 = 339,658.96 : x
  2. Step 2: Convert to fraction form
    607,930.96/838,927.56 = 339,658.96/x
  3. Step 3: Cross multiply
    607,930.96x = 838,927.56 × 339,658.96
  4. Step 4: Simplify right side
    607,930.96x = 284,949,262,544.94
  5. Step 5: Solve for x
    x = 284,949,262,544.94/607,930.96
  6. Step 6: Final answer
    x = 468,719.77

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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.