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Finding the Fourth Proportional to 462,608.22, 638,400.39 and 258,666.54

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Solution

The fourth proportional to 462,608.22, 638,400.39 and 258,666.54 is: 356,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,608.22 : 638,400.39 = 258,666.54 : x
  2. Step 2: Convert to fraction form
    462,608.22/638,400.39 = 258,666.54/x
  3. Step 3: Cross multiply
    462,608.22x = 638,400.39 × 258,666.54
  4. Step 4: Simplify right side
    462,608.22x = 165,132,820,015.95
  5. Step 5: Solve for x
    x = 165,132,820,015.95/462,608.22
  6. Step 6: Final answer
    x = 356,960.41

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1.5x scale

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.