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Finding the Fourth Proportional to 646,332.60, 969,652.71 and 325,696.62

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Solution

The fourth proportional to 646,332.60, 969,652.71 and 325,696.62 is: 488,622.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,332.60 : 969,652.71 = 325,696.62 : x
  2. Step 2: Convert to fraction form
    646,332.60/969,652.71 = 325,696.62/x
  3. Step 3: Cross multiply
    646,332.60x = 969,652.71 × 325,696.62
  4. Step 4: Simplify right side
    646,332.60x = 315,812,610,220.84
  5. Step 5: Solve for x
    x = 315,812,610,220.84/646,332.60
  6. Step 6: Final answer
    x = 488,622.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.