Home / 728,709.44-1,005,573.56-402,026.65

Finding the Fourth Proportional to 728,709.44, 1,005,573.56 and 402,026.65

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Solution

The fourth proportional to 728,709.44, 1,005,573.56 and 402,026.65 is: 554,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,709.44 : 1,005,573.56 = 402,026.65 : x
  2. Step 2: Convert to fraction form
    728,709.44/1,005,573.56 = 402,026.65/x
  3. Step 3: Cross multiply
    728,709.44x = 1,005,573.56 × 402,026.65
  4. Step 4: Simplify right side
    728,709.44x = 404,267,365,131.31
  5. Step 5: Solve for x
    x = 404,267,365,131.31/728,709.44
  6. Step 6: Final answer
    x = 554,771.69

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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.