Home / 627,124.92-865,418.04-340,638.72

Finding the Fourth Proportional to 627,124.92, 865,418.04 and 340,638.72

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Solution

The fourth proportional to 627,124.92, 865,418.04 and 340,638.72 is: 470,073.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,124.92 : 865,418.04 = 340,638.72 : x
  2. Step 2: Convert to fraction form
    627,124.92/865,418.04 = 340,638.72/x
  3. Step 3: Cross multiply
    627,124.92x = 865,418.04 × 340,638.72
  4. Step 4: Simplify right side
    627,124.92x = 294,794,893,410.51
  5. Step 5: Solve for x
    x = 294,794,893,410.51/627,124.92
  6. Step 6: Final answer
    x = 470,073.64

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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.