Home / 728,098.98-1,004,781.27-405,829.55

Finding the Fourth Proportional to 728,098.98, 1,004,781.27 and 405,829.55

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Solution

The fourth proportional to 728,098.98, 1,004,781.27 and 405,829.55 is: 560,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,098.98 : 1,004,781.27 = 405,829.55 : x
  2. Step 2: Convert to fraction form
    728,098.98/1,004,781.27 = 405,829.55/x
  3. Step 3: Cross multiply
    728,098.98x = 1,004,781.27 × 405,829.55
  4. Step 4: Simplify right side
    728,098.98x = 407,769,925,628.62
  5. Step 5: Solve for x
    x = 407,769,925,628.62/728,098.98
  6. Step 6: Final answer
    x = 560,047.38

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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.