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Finding the Fourth Proportional to 637,745.05, 880,054.89 and 396,022.42

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Solution

The fourth proportional to 637,745.05, 880,054.89 and 396,022.42 is: 546,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,745.05 : 880,054.89 = 396,022.42 : x
  2. Step 2: Convert to fraction form
    637,745.05/880,054.89 = 396,022.42/x
  3. Step 3: Cross multiply
    637,745.05x = 880,054.89 × 396,022.42
  4. Step 4: Simplify right side
    637,745.05x = 348,521,467,270.63
  5. Step 5: Solve for x
    x = 348,521,467,270.63/637,745.05
  6. Step 6: Final answer
    x = 546,490.27

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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.