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Finding the Fourth Proportional to 627,323.84, 865,707.84 and 340,843.82

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Solution

The fourth proportional to 627,323.84, 865,707.84 and 340,843.82 is: 470,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,323.84 : 865,707.84 = 340,843.82 : x
  2. Step 2: Convert to fraction form
    627,323.84/865,707.84 = 340,843.82/x
  3. Step 3: Cross multiply
    627,323.84x = 865,707.84 × 340,843.82
  4. Step 4: Simplify right side
    627,323.84x = 295,071,167,189.55
  5. Step 5: Solve for x
    x = 295,071,167,189.55/627,323.84
  6. Step 6: Final answer
    x = 470,364.98

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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.