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Finding the Fourth Proportional to 449,670.38, 620,518.68 and 245,680.70

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Solution

The fourth proportional to 449,670.38, 620,518.68 and 245,680.70 is: 339,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,670.38 : 620,518.68 = 245,680.70 : x
  2. Step 2: Convert to fraction form
    449,670.38/620,518.68 = 245,680.70/x
  3. Step 3: Cross multiply
    449,670.38x = 620,518.68 × 245,680.70
  4. Step 4: Simplify right side
    449,670.38x = 152,449,460,562.88
  5. Step 5: Solve for x
    x = 152,449,460,562.88/449,670.38
  6. Step 6: Final answer
    x = 339,024.91

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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.