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Finding the Fourth Proportional to 658,618.46, 908,894.40 and 356,812.46

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Solution

The fourth proportional to 658,618.46, 908,894.40 and 356,812.46 is: 492,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,618.46 : 908,894.40 = 356,812.46 : x
  2. Step 2: Convert to fraction form
    658,618.46/908,894.40 = 356,812.46/x
  3. Step 3: Cross multiply
    658,618.46x = 908,894.40 × 356,812.46
  4. Step 4: Simplify right side
    658,618.46x = 324,304,846,744.22
  5. Step 5: Solve for x
    x = 324,304,846,744.22/658,618.46
  6. Step 6: Final answer
    x = 492,401.70

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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.