Home / 854,055.55-1,280,647.61-285,231.74

Finding the Fourth Proportional to 854,055.55, 1,280,647.61 and 285,231.74

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Solution

The fourth proportional to 854,055.55, 1,280,647.61 and 285,231.74 is: 427,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,055.55 : 1,280,647.61 = 285,231.74 : x
  2. Step 2: Convert to fraction form
    854,055.55/1,280,647.61 = 285,231.74/x
  3. Step 3: Cross multiply
    854,055.55x = 1,280,647.61 × 285,231.74
  4. Step 4: Simplify right side
    854,055.55x = 365,281,344,700.98
  5. Step 5: Solve for x
    x = 365,281,344,700.98/854,055.55
  6. Step 6: Final answer
    x = 427,702.09

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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.