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Finding the Fourth Proportional to 449,834.32, 620,774.76 and 245,882.80

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Solution

The fourth proportional to 449,834.32, 620,774.76 and 245,882.80 is: 339,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,834.32 : 620,774.76 = 245,882.80 : x
  2. Step 2: Convert to fraction form
    449,834.32/620,774.76 = 245,882.80/x
  3. Step 3: Cross multiply
    449,834.32x = 620,774.76 × 245,882.80
  4. Step 4: Simplify right side
    449,834.32x = 152,637,836,158.13
  5. Step 5: Solve for x
    x = 152,637,836,158.13/449,834.32
  6. Step 6: Final answer
    x = 339,320.12

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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.