Home / 769,040.70-1,152,936.54-320,097.62

Finding the Fourth Proportional to 769,040.70, 1,152,936.54 and 320,097.62

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Solution

The fourth proportional to 769,040.70, 1,152,936.54 and 320,097.62 is: 479,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,040.70 : 1,152,936.54 = 320,097.62 : x
  2. Step 2: Convert to fraction form
    769,040.70/1,152,936.54 = 320,097.62/x
  3. Step 3: Cross multiply
    769,040.70x = 1,152,936.54 × 320,097.62
  4. Step 4: Simplify right side
    769,040.70x = 369,052,242,465.04
  5. Step 5: Solve for x
    x = 369,052,242,465.04/769,040.70
  6. Step 6: Final answer
    x = 479,886.49

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1.5x scale

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.