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Finding the Fourth Proportional to 646,881.60, 967,989.60 and 436,929.60

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Solution

The fourth proportional to 646,881.60, 967,989.60 and 436,929.60 is: 653,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,881.60 : 967,989.60 = 436,929.60 : x
  2. Step 2: Convert to fraction form
    646,881.60/967,989.60 = 436,929.60/x
  3. Step 3: Cross multiply
    646,881.60x = 967,989.60 × 436,929.60
  4. Step 4: Simplify right side
    646,881.60x = 422,943,308,732.16
  5. Step 5: Solve for x
    x = 422,943,308,732.16/646,881.60
  6. Step 6: Final answer
    x = 653,818.73

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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.