Home / 819,021.60-1,228,532.40-731,930.40

Finding the Fourth Proportional to 819,021.60, 1,228,532.40 and 731,930.40

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Solution

The fourth proportional to 819,021.60, 1,228,532.40 and 731,930.40 is: 1,097,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,021.60 : 1,228,532.40 = 731,930.40 : x
  2. Step 2: Convert to fraction form
    819,021.60/1,228,532.40 = 731,930.40/x
  3. Step 3: Cross multiply
    819,021.60x = 1,228,532.40 × 731,930.40
  4. Step 4: Simplify right side
    819,021.60x = 899,200,210,944.96
  5. Step 5: Solve for x
    x = 899,200,210,944.96/819,021.60
  6. Step 6: Final answer
    x = 1,097,895.60

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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.