Home / 387,830.49-534,764.81-273,072.45

Finding the Fourth Proportional to 387,830.49, 534,764.81 and 273,072.45

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Solution

The fourth proportional to 387,830.49, 534,764.81 and 273,072.45 is: 376,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,830.49 : 534,764.81 = 273,072.45 : x
  2. Step 2: Convert to fraction form
    387,830.49/534,764.81 = 273,072.45/x
  3. Step 3: Cross multiply
    387,830.49x = 534,764.81 × 273,072.45
  4. Step 4: Simplify right side
    387,830.49x = 146,029,532,801.30
  5. Step 5: Solve for x
    x = 146,029,532,801.30/387,830.49
  6. Step 6: Final answer
    x = 376,529.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.