Home / 901,009.44-1,243,381.86-493,109.64

Finding the Fourth Proportional to 901,009.44, 1,243,381.86 and 493,109.64

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Solution

The fourth proportional to 901,009.44, 1,243,381.86 and 493,109.64 is: 680,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,009.44 : 1,243,381.86 = 493,109.64 : x
  2. Step 2: Convert to fraction form
    901,009.44/1,243,381.86 = 493,109.64/x
  3. Step 3: Cross multiply
    901,009.44x = 1,243,381.86 × 493,109.64
  4. Step 4: Simplify right side
    901,009.44x = 613,123,581,367.13
  5. Step 5: Solve for x
    x = 613,123,581,367.13/901,009.44
  6. Step 6: Final answer
    x = 680,485.19

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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.