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Finding the Fourth Proportional to 658,460.81, 908,675.96 and 356,654.81

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Solution

The fourth proportional to 658,460.81, 908,675.96 and 356,654.81 is: 492,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,460.81 : 908,675.96 = 356,654.81 : x
  2. Step 2: Convert to fraction form
    658,460.81/908,675.96 = 356,654.81/x
  3. Step 3: Cross multiply
    658,460.81x = 908,675.96 × 356,654.81
  4. Step 4: Simplify right side
    658,460.81x = 324,083,652,353.78
  5. Step 5: Solve for x
    x = 324,083,652,353.78/658,460.81
  6. Step 6: Final answer
    x = 492,183.66

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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.