Home / 728,165.16-1,004,844.64-456,379.80

Finding the Fourth Proportional to 728,165.16, 1,004,844.64 and 456,379.80

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Solution

The fourth proportional to 728,165.16, 1,004,844.64 and 456,379.80 is: 629,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,165.16 : 1,004,844.64 = 456,379.80 : x
  2. Step 2: Convert to fraction form
    728,165.16/1,004,844.64 = 456,379.80/x
  3. Step 3: Cross multiply
    728,165.16x = 1,004,844.64 × 456,379.80
  4. Step 4: Simplify right side
    728,165.16x = 458,590,795,834.27
  5. Step 5: Solve for x
    x = 458,590,795,834.27/728,165.16
  6. Step 6: Final answer
    x = 629,789.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.