Home / 462,819.20-638,749.62-258,881.45

Finding the Fourth Proportional to 462,819.20, 638,749.62 and 258,881.45

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Solution

The fourth proportional to 462,819.20, 638,749.62 and 258,881.45 is: 357,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,819.20 : 638,749.62 = 258,881.45 : x
  2. Step 2: Convert to fraction form
    462,819.20/638,749.62 = 258,881.45/x
  3. Step 3: Cross multiply
    462,819.20x = 638,749.62 × 258,881.45
  4. Step 4: Simplify right side
    462,819.20x = 165,360,424,618.80
  5. Step 5: Solve for x
    x = 165,360,424,618.80/462,819.20
  6. Step 6: Final answer
    x = 357,289.47

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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.