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Finding the Fourth Proportional to 449,432.65, 620,213.38 and 245,483.70

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Solution

The fourth proportional to 449,432.65, 620,213.38 and 245,483.70 is: 338,765.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,432.65 : 620,213.38 = 245,483.70 : x
  2. Step 2: Convert to fraction form
    449,432.65/620,213.38 = 245,483.70/x
  3. Step 3: Cross multiply
    449,432.65x = 620,213.38 × 245,483.70
  4. Step 4: Simplify right side
    449,432.65x = 152,252,275,635.02
  5. Step 5: Solve for x
    x = 152,252,275,635.02/449,432.65
  6. Step 6: Final answer
    x = 338,765.50

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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.