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Finding the Fourth Proportional to 540,222.52, 745,022.80 and 449,877.64

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Solution

The fourth proportional to 540,222.52, 745,022.80 and 449,877.64 is: 620,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,222.52 : 745,022.80 = 449,877.64 : x
  2. Step 2: Convert to fraction form
    540,222.52/745,022.80 = 449,877.64/x
  3. Step 3: Cross multiply
    540,222.52x = 745,022.80 × 449,877.64
  4. Step 4: Simplify right side
    540,222.52x = 335,169,099,010.19
  5. Step 5: Solve for x
    x = 335,169,099,010.19/540,222.52
  6. Step 6: Final answer
    x = 620,427.85

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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.