Home / 815,564.40-1,223,346.60-532,129.20

Finding the Fourth Proportional to 815,564.40, 1,223,346.60 and 532,129.20

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Solution

The fourth proportional to 815,564.40, 1,223,346.60 and 532,129.20 is: 798,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,564.40 : 1,223,346.60 = 532,129.20 : x
  2. Step 2: Convert to fraction form
    815,564.40/1,223,346.60 = 532,129.20/x
  3. Step 3: Cross multiply
    815,564.40x = 1,223,346.60 × 532,129.20
  4. Step 4: Simplify right side
    815,564.40x = 650,978,447,580.72
  5. Step 5: Solve for x
    x = 650,978,447,580.72/815,564.40
  6. Step 6: Final answer
    x = 798,193.80

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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.