Home / 854,049.14-1,280,638.47-285,225.62

Finding the Fourth Proportional to 854,049.14, 1,280,638.47 and 285,225.62

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Solution

The fourth proportional to 854,049.14, 1,280,638.47 and 285,225.62 is: 427,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,049.14 : 1,280,638.47 = 285,225.62 : x
  2. Step 2: Convert to fraction form
    854,049.14/1,280,638.47 = 285,225.62/x
  3. Step 3: Cross multiply
    854,049.14x = 1,280,638.47 × 285,225.62
  4. Step 4: Simplify right side
    854,049.14x = 365,270,901,601.60
  5. Step 5: Solve for x
    x = 365,270,901,601.60/854,049.14
  6. Step 6: Final answer
    x = 427,693.07

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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.