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Finding the Fourth Proportional to 610,408.56, 842,373.90 and 338,487.96

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Solution

The fourth proportional to 610,408.56, 842,373.90 and 338,487.96 is: 467,118.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,408.56 : 842,373.90 = 338,487.96 : x
  2. Step 2: Convert to fraction form
    610,408.56/842,373.90 = 338,487.96/x
  3. Step 3: Cross multiply
    610,408.56x = 842,373.90 × 338,487.96
  4. Step 4: Simplify right side
    610,408.56x = 285,133,422,968.24
  5. Step 5: Solve for x
    x = 285,133,422,968.24/610,408.56
  6. Step 6: Final answer
    x = 467,118.98

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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.