Home / 823,109.60-1,237,288.80-775,870.40

Finding the Fourth Proportional to 823,109.60, 1,237,288.80 and 775,870.40

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Solution

The fourth proportional to 823,109.60, 1,237,288.80 and 775,870.40 is: 1,166,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,109.60 : 1,237,288.80 = 775,870.40 : x
  2. Step 2: Convert to fraction form
    823,109.60/1,237,288.80 = 775,870.40/x
  3. Step 3: Cross multiply
    823,109.60x = 1,237,288.80 × 775,870.40
  4. Step 4: Simplify right side
    823,109.60x = 959,975,756,171.52
  5. Step 5: Solve for x
    x = 959,975,756,171.52/823,109.60
  6. Step 6: Final answer
    x = 1,166,279.38

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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.