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Finding the Fourth Proportional to 449,633.93, 674,783.49 and 212,977.13

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Solution

The fourth proportional to 449,633.93, 674,783.49 and 212,977.13 is: 319,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,633.93 : 674,783.49 = 212,977.13 : x
  2. Step 2: Convert to fraction form
    449,633.93/674,783.49 = 212,977.13/x
  3. Step 3: Cross multiply
    449,633.93x = 674,783.49 × 212,977.13
  4. Step 4: Simplify right side
    449,633.93x = 143,713,447,697.67
  5. Step 5: Solve for x
    x = 143,713,447,697.67/449,633.93
  6. Step 6: Final answer
    x = 319,623.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.