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Finding the Fourth Proportional to 627,073.92, 865,368.36 and 340,599.60

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Solution

The fourth proportional to 627,073.92, 865,368.36 and 340,599.60 is: 470,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,073.92 : 865,368.36 = 340,599.60 : x
  2. Step 2: Convert to fraction form
    627,073.92/865,368.36 = 340,599.60/x
  3. Step 3: Cross multiply
    627,073.92x = 865,368.36 × 340,599.60
  4. Step 4: Simplify right side
    627,073.92x = 294,744,117,268.66
  5. Step 5: Solve for x
    x = 294,744,117,268.66/627,073.92
  6. Step 6: Final answer
    x = 470,030.90

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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.