Home / 386,505.84-534,110.04-290,845.92

Finding the Fourth Proportional to 386,505.84, 534,110.04 and 290,845.92

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Solution

The fourth proportional to 386,505.84, 534,110.04 and 290,845.92 is: 401,918.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,505.84 : 534,110.04 = 290,845.92 : x
  2. Step 2: Convert to fraction form
    386,505.84/534,110.04 = 290,845.92/x
  3. Step 3: Cross multiply
    386,505.84x = 534,110.04 × 290,845.92
  4. Step 4: Simplify right side
    386,505.84x = 155,343,725,965.04
  5. Step 5: Solve for x
    x = 155,343,725,965.04/386,505.84
  6. Step 6: Final answer
    x = 401,918.19

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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.