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Finding the Fourth Proportional to 608,764.70, 840,120.05 and 336,828.17

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Solution

The fourth proportional to 608,764.70, 840,120.05 and 336,828.17 is: 464,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,764.70 : 840,120.05 = 336,828.17 : x
  2. Step 2: Convert to fraction form
    608,764.70/840,120.05 = 336,828.17/x
  3. Step 3: Cross multiply
    608,764.70x = 840,120.05 × 336,828.17
  4. Step 4: Simplify right side
    608,764.70x = 282,976,099,021.81
  5. Step 5: Solve for x
    x = 282,976,099,021.81/608,764.70
  6. Step 6: Final answer
    x = 464,836.58

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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.