Home / 1,058,128.88-1,459,990.68-628,553.84

Finding the Fourth Proportional to 1,058,128.88, 1,459,990.68 and 628,553.84

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Solution

The fourth proportional to 1,058,128.88, 1,459,990.68 and 628,553.84 is: 867,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,128.88 : 1,459,990.68 = 628,553.84 : x
  2. Step 2: Convert to fraction form
    1,058,128.88/1,459,990.68 = 628,553.84/x
  3. Step 3: Cross multiply
    1,058,128.88x = 1,459,990.68 × 628,553.84
  4. Step 4: Simplify right side
    1,058,128.88x = 917,682,748,278.21
  5. Step 5: Solve for x
    x = 917,682,748,278.21/1,058,128.88
  6. Step 6: Final answer
    x = 867,269.35

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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.