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Finding the Fourth Proportional to 427,689, 590,210.82 and 248,841

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Solution

The fourth proportional to 427,689, 590,210.82 and 248,841 is: 343,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,689 : 590,210.82 = 248,841 : x
  2. Step 2: Convert to fraction form
    427,689/590,210.82 = 248,841/x
  3. Step 3: Cross multiply
    427,689x = 590,210.82 × 248,841
  4. Step 4: Simplify right side
    427,689x = 146,868,650,659.62
  5. Step 5: Solve for x
    x = 146,868,650,659.62/427,689
  6. Step 6: Final answer
    x = 343,400.58

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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.