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Finding the Fourth Proportional to 608,838.23, 840,285.89 and 350,665.55

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Solution

The fourth proportional to 608,838.23, 840,285.89 and 350,665.55 is: 483,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,838.23 : 840,285.89 = 350,665.55 : x
  2. Step 2: Convert to fraction form
    608,838.23/840,285.89 = 350,665.55/x
  3. Step 3: Cross multiply
    608,838.23x = 840,285.89 × 350,665.55
  4. Step 4: Simplify right side
    608,838.23x = 294,659,313,774.09
  5. Step 5: Solve for x
    x = 294,659,313,774.09/608,838.23
  6. Step 6: Final answer
    x = 483,969.80

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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.