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Finding the Fourth Proportional to 608,892.90, 840,273.84 and 336,979.55

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Solution

The fourth proportional to 608,892.90, 840,273.84 and 336,979.55 is: 465,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,892.90 : 840,273.84 = 336,979.55 : x
  2. Step 2: Convert to fraction form
    608,892.90/840,273.84 = 336,979.55/x
  3. Step 3: Cross multiply
    608,892.90x = 840,273.84 × 336,979.55
  4. Step 4: Simplify right side
    608,892.90x = 283,155,096,278.60
  5. Step 5: Solve for x
    x = 283,155,096,278.60/608,892.90
  6. Step 6: Final answer
    x = 465,032.68

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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.