Home / 853,957.56-1,280,800.26-285,288.96

Finding the Fourth Proportional to 853,957.56, 1,280,800.26 and 285,288.96

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Solution

The fourth proportional to 853,957.56, 1,280,800.26 and 285,288.96 is: 427,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,957.56 : 1,280,800.26 = 285,288.96 : x
  2. Step 2: Convert to fraction form
    853,957.56/1,280,800.26 = 285,288.96/x
  3. Step 3: Cross multiply
    853,957.56x = 1,280,800.26 × 285,288.96
  4. Step 4: Simplify right side
    853,957.56x = 365,398,174,143.13
  5. Step 5: Solve for x
    x = 365,398,174,143.13/853,957.56
  6. Step 6: Final answer
    x = 427,887.98

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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.