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Finding the Fourth Proportional to 658,040.25, 908,095.68 and 356,234.25

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Solution

The fourth proportional to 658,040.25, 908,095.68 and 356,234.25 is: 491,603.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,040.25 : 908,095.68 = 356,234.25 : x
  2. Step 2: Convert to fraction form
    658,040.25/908,095.68 = 356,234.25/x
  3. Step 3: Cross multiply
    658,040.25x = 908,095.68 × 356,234.25
  4. Step 4: Simplify right side
    658,040.25x = 323,494,783,493.04
  5. Step 5: Solve for x
    x = 323,494,783,493.04/658,040.25
  6. Step 6: Final answer
    x = 491,603.34

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Double scale
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Similar ratio
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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.