Home / 728,999.60-1,093,499.40-445,564.40

Finding the Fourth Proportional to 728,999.60, 1,093,499.40 and 445,564.40

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Solution

The fourth proportional to 728,999.60, 1,093,499.40 and 445,564.40 is: 668,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,999.60 : 1,093,499.40 = 445,564.40 : x
  2. Step 2: Convert to fraction form
    728,999.60/1,093,499.40 = 445,564.40/x
  3. Step 3: Cross multiply
    728,999.60x = 1,093,499.40 × 445,564.40
  4. Step 4: Simplify right side
    728,999.60x = 487,224,404,061.36
  5. Step 5: Solve for x
    x = 487,224,404,061.36/728,999.60
  6. Step 6: Final answer
    x = 668,346.60

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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.