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Finding the Fourth Proportional to 627,262.81, 865,626.82 and 340,782.82

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Solution

The fourth proportional to 627,262.81, 865,626.82 and 340,782.82 is: 470,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,262.81 : 865,626.82 = 340,782.82 : x
  2. Step 2: Convert to fraction form
    627,262.81/865,626.82 = 340,782.82/x
  3. Step 3: Cross multiply
    627,262.81x = 865,626.82 × 340,782.82
  4. Step 4: Simplify right side
    627,262.81x = 294,990,745,771.21
  5. Step 5: Solve for x
    x = 294,990,745,771.21/627,262.81
  6. Step 6: Final answer
    x = 470,282.54

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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.