Home / 731,808.34-1,009,879.48-400,663.60

Finding the Fourth Proportional to 731,808.34, 1,009,879.48 and 400,663.60

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Solution

The fourth proportional to 731,808.34, 1,009,879.48 and 400,663.60 is: 552,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,808.34 : 1,009,879.48 = 400,663.60 : x
  2. Step 2: Convert to fraction form
    731,808.34/1,009,879.48 = 400,663.60/x
  3. Step 3: Cross multiply
    731,808.34x = 1,009,879.48 × 400,663.60
  4. Step 4: Simplify right side
    731,808.34x = 404,621,945,999.06
  5. Step 5: Solve for x
    x = 404,621,945,999.06/731,808.34
  6. Step 6: Final answer
    x = 552,906.99

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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.