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Finding the Fourth Proportional to 609,084.96, 840,855.60 and 379,712.16

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Solution

The fourth proportional to 609,084.96, 840,855.60 and 379,712.16 is: 524,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,084.96 : 840,855.60 = 379,712.16 : x
  2. Step 2: Convert to fraction form
    609,084.96/840,855.60 = 379,712.16/x
  3. Step 3: Cross multiply
    609,084.96x = 840,855.60 × 379,712.16
  4. Step 4: Simplify right side
    609,084.96x = 319,283,096,124.10
  5. Step 5: Solve for x
    x = 319,283,096,124.10/609,084.96
  6. Step 6: Final answer
    x = 524,201.25

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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.