Home / 462,721.55-638,588.29-258,791.45

Finding the Fourth Proportional to 462,721.55, 638,588.29 and 258,791.45

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Solution

The fourth proportional to 462,721.55, 638,588.29 and 258,791.45 is: 357,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,721.55 : 638,588.29 = 258,791.45 : x
  2. Step 2: Convert to fraction form
    462,721.55/638,588.29 = 258,791.45/x
  3. Step 3: Cross multiply
    462,721.55x = 638,588.29 × 258,791.45
  4. Step 4: Simplify right side
    462,721.55x = 165,261,189,522.12
  5. Step 5: Solve for x
    x = 165,261,189,522.12/462,721.55
  6. Step 6: Final answer
    x = 357,150.41

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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.