Home / 902,485.20-1,245,271.68-515,123.76

Finding the Fourth Proportional to 902,485.20, 1,245,271.68 and 515,123.76

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Solution

The fourth proportional to 902,485.20, 1,245,271.68 and 515,123.76 is: 710,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,485.20 : 1,245,271.68 = 515,123.76 : x
  2. Step 2: Convert to fraction form
    902,485.20/1,245,271.68 = 515,123.76/x
  3. Step 3: Cross multiply
    902,485.20x = 1,245,271.68 × 515,123.76
  4. Step 4: Simplify right side
    902,485.20x = 641,469,030,023.12
  5. Step 5: Solve for x
    x = 641,469,030,023.12/902,485.20
  6. Step 6: Final answer
    x = 710,780.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.