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Finding the Fourth Proportional to 427,987.08, 590,520.71 and 253,469.17

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Solution

The fourth proportional to 427,987.08, 590,520.71 and 253,469.17 is: 349,727.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,987.08 : 590,520.71 = 253,469.17 : x
  2. Step 2: Convert to fraction form
    427,987.08/590,520.71 = 253,469.17/x
  3. Step 3: Cross multiply
    427,987.08x = 590,520.71 × 253,469.17
  4. Step 4: Simplify right side
    427,987.08x = 149,678,794,231.51
  5. Step 5: Solve for x
    x = 149,678,794,231.51/427,987.08
  6. Step 6: Final answer
    x = 349,727.37

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1.5x scale

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.