Home / 755,998.40-1,133,997.60-257,362.40

Finding the Fourth Proportional to 755,998.40, 1,133,997.60 and 257,362.40

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Solution

The fourth proportional to 755,998.40, 1,133,997.60 and 257,362.40 is: 386,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,998.40 : 1,133,997.60 = 257,362.40 : x
  2. Step 2: Convert to fraction form
    755,998.40/1,133,997.60 = 257,362.40/x
  3. Step 3: Cross multiply
    755,998.40x = 1,133,997.60 × 257,362.40
  4. Step 4: Simplify right side
    755,998.40x = 291,848,343,930.24
  5. Step 5: Solve for x
    x = 291,848,343,930.24/755,998.40
  6. Step 6: Final answer
    x = 386,043.60

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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.