Home / 772,236.50-1,065,642.82-449,999.06

Finding the Fourth Proportional to 772,236.50, 1,065,642.82 and 449,999.06

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Solution

The fourth proportional to 772,236.50, 1,065,642.82 and 449,999.06 is: 620,973.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,236.50 : 1,065,642.82 = 449,999.06 : x
  2. Step 2: Convert to fraction form
    772,236.50/1,065,642.82 = 449,999.06/x
  3. Step 3: Cross multiply
    772,236.50x = 1,065,642.82 × 449,999.06
  4. Step 4: Simplify right side
    772,236.50x = 479,538,260,842.54
  5. Step 5: Solve for x
    x = 479,538,260,842.54/772,236.50
  6. Step 6: Final answer
    x = 620,973.32

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Double scale
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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.