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Finding the Fourth Proportional to 476,696.64, 657,955.95 and 272,865.72

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Solution

The fourth proportional to 476,696.64, 657,955.95 and 272,865.72 is: 376,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,696.64 : 657,955.95 = 272,865.72 : x
  2. Step 2: Convert to fraction form
    476,696.64/657,955.95 = 272,865.72/x
  3. Step 3: Cross multiply
    476,696.64x = 657,955.95 × 272,865.72
  4. Step 4: Simplify right side
    476,696.64x = 179,533,624,025.03
  5. Step 5: Solve for x
    x = 179,533,624,025.03/476,696.64
  6. Step 6: Final answer
    x = 376,620.28

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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.