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Finding the Fourth Proportional to 449,831.40, 620,665.02 and 268,602

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Solution

The fourth proportional to 449,831.40, 620,665.02 and 268,602 is: 370,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,831.40 : 620,665.02 = 268,602 : x
  2. Step 2: Convert to fraction form
    449,831.40/620,665.02 = 268,602/x
  3. Step 3: Cross multiply
    449,831.40x = 620,665.02 × 268,602
  4. Step 4: Simplify right side
    449,831.40x = 166,711,865,702.04
  5. Step 5: Solve for x
    x = 166,711,865,702.04/449,831.40
  6. Step 6: Final answer
    x = 370,609.67

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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.