Home / 728,473.67-1,092,448.05-307,782.35

Finding the Fourth Proportional to 728,473.67, 1,092,448.05 and 307,782.35

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Solution

The fourth proportional to 728,473.67, 1,092,448.05 and 307,782.35 is: 461,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,473.67 : 1,092,448.05 = 307,782.35 : x
  2. Step 2: Convert to fraction form
    728,473.67/1,092,448.05 = 307,782.35/x
  3. Step 3: Cross multiply
    728,473.67x = 1,092,448.05 × 307,782.35
  4. Step 4: Simplify right side
    728,473.67x = 336,236,222,619.68
  5. Step 5: Solve for x
    x = 336,236,222,619.68/728,473.67
  6. Step 6: Final answer
    x = 461,562.63

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Double scale
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Similar ratio
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1.5x scale

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.