Home / 767,805.84-1,151,708.54-412,330.86

Finding the Fourth Proportional to 767,805.84, 1,151,708.54 and 412,330.86

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Solution

The fourth proportional to 767,805.84, 1,151,708.54 and 412,330.86 is: 618,496.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,805.84 : 1,151,708.54 = 412,330.86 : x
  2. Step 2: Convert to fraction form
    767,805.84/1,151,708.54 = 412,330.86/x
  3. Step 3: Cross multiply
    767,805.84x = 1,151,708.54 × 412,330.86
  4. Step 4: Simplify right side
    767,805.84x = 474,884,972,767.54
  5. Step 5: Solve for x
    x = 474,884,972,767.54/767,805.84
  6. Step 6: Final answer
    x = 618,496.17

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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.