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Finding the Fourth Proportional to 658,054.78, 908,107.96 and 371,586.94

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Solution

The fourth proportional to 658,054.78, 908,107.96 and 371,586.94 is: 512,785.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,054.78 : 908,107.96 = 371,586.94 : x
  2. Step 2: Convert to fraction form
    658,054.78/908,107.96 = 371,586.94/x
  3. Step 3: Cross multiply
    658,054.78x = 908,107.96 × 371,586.94
  4. Step 4: Simplify right side
    658,054.78x = 337,441,058,046.04
  5. Step 5: Solve for x
    x = 337,441,058,046.04/658,054.78
  6. Step 6: Final answer
    x = 512,785.67

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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.