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Finding the Fourth Proportional to 585,898.60, 808,539.78 and 317,626.60

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Solution

The fourth proportional to 585,898.60, 808,539.78 and 317,626.60 is: 438,324.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,898.60 : 808,539.78 = 317,626.60 : x
  2. Step 2: Convert to fraction form
    585,898.60/808,539.78 = 317,626.60/x
  3. Step 3: Cross multiply
    585,898.60x = 808,539.78 × 317,626.60
  4. Step 4: Simplify right side
    585,898.60x = 256,813,741,286.15
  5. Step 5: Solve for x
    x = 256,813,741,286.15/585,898.60
  6. Step 6: Final answer
    x = 438,324.55

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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.