Home / 769,355.60-1,153,330.32-342,667.04

Finding the Fourth Proportional to 769,355.60, 1,153,330.32 and 342,667.04

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Solution

The fourth proportional to 769,355.60, 1,153,330.32 and 342,667.04 is: 513,687.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,355.60 : 1,153,330.32 = 342,667.04 : x
  2. Step 2: Convert to fraction form
    769,355.60/1,153,330.32 = 342,667.04/x
  3. Step 3: Cross multiply
    769,355.60x = 1,153,330.32 × 342,667.04
  4. Step 4: Simplify right side
    769,355.60x = 395,208,286,896.65
  5. Step 5: Solve for x
    x = 395,208,286,896.65/769,355.60
  6. Step 6: Final answer
    x = 513,687.41

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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.