Home / 1,638,269.82-2,457,402.57-761,822.28

Finding the Fourth Proportional to 1,638,269.82, 2,457,402.57 and 761,822.28

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Solution

The fourth proportional to 1,638,269.82, 2,457,402.57 and 761,822.28 is: 1,142,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,269.82 : 2,457,402.57 = 761,822.28 : x
  2. Step 2: Convert to fraction form
    1,638,269.82/2,457,402.57 = 761,822.28/x
  3. Step 3: Cross multiply
    1,638,269.82x = 2,457,402.57 × 761,822.28
  4. Step 4: Simplify right side
    1,638,269.82x = 1,872,104,028,755.26
  5. Step 5: Solve for x
    x = 1,872,104,028,755.26/1,638,269.82
  6. Step 6: Final answer
    x = 1,142,732.42

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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.