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Finding the Fourth Proportional to 610,633.45, 842,775.05 and 338,788.81

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Solution

The fourth proportional to 610,633.45, 842,775.05 and 338,788.81 is: 467,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,633.45 : 842,775.05 = 338,788.81 : x
  2. Step 2: Convert to fraction form
    610,633.45/842,775.05 = 338,788.81/x
  3. Step 3: Cross multiply
    610,633.45x = 842,775.05 × 338,788.81
  4. Step 4: Simplify right side
    610,633.45x = 285,522,750,379.37
  5. Step 5: Solve for x
    x = 285,522,750,379.37/610,633.45
  6. Step 6: Final answer
    x = 467,584.53

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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.