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Finding the Fourth Proportional to 658,234.54, 908,362.11 and 356,428.54

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Solution

The fourth proportional to 658,234.54, 908,362.11 and 356,428.54 is: 491,870.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,234.54 : 908,362.11 = 356,428.54 : x
  2. Step 2: Convert to fraction form
    658,234.54/908,362.11 = 356,428.54/x
  3. Step 3: Cross multiply
    658,234.54x = 908,362.11 × 356,428.54
  4. Step 4: Simplify right side
    658,234.54x = 323,766,180,658.62
  5. Step 5: Solve for x
    x = 323,766,180,658.62/658,234.54
  6. Step 6: Final answer
    x = 491,870.54

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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.