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Finding the Fourth Proportional to 609,456.64, 841,152.72 and 354,958.96

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Solution

The fourth proportional to 609,456.64, 841,152.72 and 354,958.96 is: 489,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,456.64 : 841,152.72 = 354,958.96 : x
  2. Step 2: Convert to fraction form
    609,456.64/841,152.72 = 354,958.96/x
  3. Step 3: Cross multiply
    609,456.64x = 841,152.72 × 354,958.96
  4. Step 4: Simplify right side
    609,456.64x = 298,574,694,692.37
  5. Step 5: Solve for x
    x = 298,574,694,692.37/609,456.64
  6. Step 6: Final answer
    x = 489,903.10

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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.