Home / 1,071,211.28-1,605,155.70-620,815.03

Finding the Fourth Proportional to 1,071,211.28, 1,605,155.70 and 620,815.03

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Solution

The fourth proportional to 1,071,211.28, 1,605,155.70 and 620,815.03 is: 930,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,211.28 : 1,605,155.70 = 620,815.03 : x
  2. Step 2: Convert to fraction form
    1,071,211.28/1,605,155.70 = 620,815.03/x
  3. Step 3: Cross multiply
    1,071,211.28x = 1,605,155.70 × 620,815.03
  4. Step 4: Simplify right side
    1,071,211.28x = 996,504,782,365.34
  5. Step 5: Solve for x
    x = 996,504,782,365.34/1,071,211.28
  6. Step 6: Final answer
    x = 930,259.80

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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.