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Finding the Fourth Proportional to 425,251.58, 637,878.27 and 399,270.02

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Solution

The fourth proportional to 425,251.58, 637,878.27 and 399,270.02 is: 598,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,251.58 : 637,878.27 = 399,270.02 : x
  2. Step 2: Convert to fraction form
    425,251.58/637,878.27 = 399,270.02/x
  3. Step 3: Cross multiply
    425,251.58x = 637,878.27 × 399,270.02
  4. Step 4: Simplify right side
    425,251.58x = 254,685,669,620.47
  5. Step 5: Solve for x
    x = 254,685,669,620.47/425,251.58
  6. Step 6: Final answer
    x = 598,905.88

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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.