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Finding the Fourth Proportional to 452,740, 624,800.64 and 251,536

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Solution

The fourth proportional to 452,740, 624,800.64 and 251,536 is: 347,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,740 : 624,800.64 = 251,536 : x
  2. Step 2: Convert to fraction form
    452,740/624,800.64 = 251,536/x
  3. Step 3: Cross multiply
    452,740x = 624,800.64 × 251,536
  4. Step 4: Simplify right side
    452,740x = 157,159,853,783.04
  5. Step 5: Solve for x
    x = 157,159,853,783.04/452,740
  6. Step 6: Final answer
    x = 347,130.48

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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.