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Finding the Fourth Proportional to 449,706.91, 620,603.67 and 245,766.46

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Solution

The fourth proportional to 449,706.91, 620,603.67 and 245,766.46 is: 339,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,706.91 : 620,603.67 = 245,766.46 : x
  2. Step 2: Convert to fraction form
    449,706.91/620,603.67 = 245,766.46/x
  3. Step 3: Cross multiply
    449,706.91x = 620,603.67 × 245,766.46
  4. Step 4: Simplify right side
    449,706.91x = 152,523,567,038.91
  5. Step 5: Solve for x
    x = 152,523,567,038.91/449,706.91
  6. Step 6: Final answer
    x = 339,162.16

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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.