Home / 578,311.20-867,207.60-262,605.60

Finding the Fourth Proportional to 578,311.20, 867,207.60 and 262,605.60

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Solution

The fourth proportional to 578,311.20, 867,207.60 and 262,605.60 is: 393,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,311.20 : 867,207.60 = 262,605.60 : x
  2. Step 2: Convert to fraction form
    578,311.20/867,207.60 = 262,605.60/x
  3. Step 3: Cross multiply
    578,311.20x = 867,207.60 × 262,605.60
  4. Step 4: Simplify right side
    578,311.20x = 227,733,572,122.56
  5. Step 5: Solve for x
    x = 227,733,572,122.56/578,311.20
  6. Step 6: Final answer
    x = 393,790.70

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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.