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Finding the Fourth Proportional to 627,231.58, 865,580.70 and 340,752

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Solution

The fourth proportional to 627,231.58, 865,580.70 and 340,752 is: 470,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,231.58 : 865,580.70 = 340,752 : x
  2. Step 2: Convert to fraction form
    627,231.58/865,580.70 = 340,752/x
  3. Step 3: Cross multiply
    627,231.58x = 865,580.70 × 340,752
  4. Step 4: Simplify right side
    627,231.58x = 294,948,354,686.40
  5. Step 5: Solve for x
    x = 294,948,354,686.40/627,231.58
  6. Step 6: Final answer
    x = 470,238.37

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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.