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Finding the Fourth Proportional to 627,495.64, 865,950.74 and 341,015.79

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Solution

The fourth proportional to 627,495.64, 865,950.74 and 341,015.79 is: 470,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,495.64 : 865,950.74 = 341,015.79 : x
  2. Step 2: Convert to fraction form
    627,495.64/865,950.74 = 341,015.79/x
  3. Step 3: Cross multiply
    627,495.64x = 865,950.74 × 341,015.79
  4. Step 4: Simplify right side
    627,495.64x = 295,302,869,667.35
  5. Step 5: Solve for x
    x = 295,302,869,667.35/627,495.64
  6. Step 6: Final answer
    x = 470,605.45

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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.