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Finding the Fourth Proportional to 610,387.14, 842,299.92 and 338,438.82

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Solution

The fourth proportional to 610,387.14, 842,299.92 and 338,438.82 is: 467,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,387.14 : 842,299.92 = 338,438.82 : x
  2. Step 2: Convert to fraction form
    610,387.14/842,299.92 = 338,438.82/x
  3. Step 3: Cross multiply
    610,387.14x = 842,299.92 × 338,438.82
  4. Step 4: Simplify right side
    610,387.14x = 285,066,991,010.89
  5. Step 5: Solve for x
    x = 285,066,991,010.89/610,387.14
  6. Step 6: Final answer
    x = 467,026.54

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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.