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Finding the Fourth Proportional to 462,779.88, 638,607 and 258,849.48

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Solution

The fourth proportional to 462,779.88, 638,607 and 258,849.48 is: 357,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,779.88 : 638,607 = 258,849.48 : x
  2. Step 2: Convert to fraction form
    462,779.88/638,607 = 258,849.48/x
  3. Step 3: Cross multiply
    462,779.88x = 638,607 × 258,849.48
  4. Step 4: Simplify right side
    462,779.88x = 165,303,089,874.36
  5. Step 5: Solve for x
    x = 165,303,089,874.36/462,779.88
  6. Step 6: Final answer
    x = 357,195.93

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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.