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Finding the Fourth Proportional to 530,499.92, 795,990.60 and 485,651.60

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Solution

The fourth proportional to 530,499.92, 795,990.60 and 485,651.60 is: 728,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,499.92 : 795,990.60 = 485,651.60 : x
  2. Step 2: Convert to fraction form
    530,499.92/795,990.60 = 485,651.60/x
  3. Step 3: Cross multiply
    530,499.92x = 795,990.60 × 485,651.60
  4. Step 4: Simplify right side
    530,499.92x = 386,574,108,474.96
  5. Step 5: Solve for x
    x = 386,574,108,474.96/530,499.92
  6. Step 6: Final answer
    x = 728,697.77

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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.