Home / 772,236.37-1,065,642.64-449,998.93

Finding the Fourth Proportional to 772,236.37, 1,065,642.64 and 449,998.93

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Solution

The fourth proportional to 772,236.37, 1,065,642.64 and 449,998.93 is: 620,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,236.37 : 1,065,642.64 = 449,998.93 : x
  2. Step 2: Convert to fraction form
    772,236.37/1,065,642.64 = 449,998.93/x
  3. Step 3: Cross multiply
    772,236.37x = 1,065,642.64 × 449,998.93
  4. Step 4: Simplify right side
    772,236.37x = 479,538,047,762.38
  5. Step 5: Solve for x
    x = 479,538,047,762.38/772,236.37
  6. Step 6: Final answer
    x = 620,973.15

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.