Home / 386,102.42-578,513.55-273,223.34

Finding the Fourth Proportional to 386,102.42, 578,513.55 and 273,223.34

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Solution

The fourth proportional to 386,102.42, 578,513.55 and 273,223.34 is: 409,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,102.42 : 578,513.55 = 273,223.34 : x
  2. Step 2: Convert to fraction form
    386,102.42/578,513.55 = 273,223.34/x
  3. Step 3: Cross multiply
    386,102.42x = 578,513.55 × 273,223.34
  4. Step 4: Simplify right side
    386,102.42x = 158,063,404,366.26
  5. Step 5: Solve for x
    x = 158,063,404,366.26/386,102.42
  6. Step 6: Final answer
    x = 409,382.06

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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.