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Finding the Fourth Proportional to 647,955.72, 894,176.28 and 361,475.64

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Solution

The fourth proportional to 647,955.72, 894,176.28 and 361,475.64 is: 498,834.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,955.72 : 894,176.28 = 361,475.64 : x
  2. Step 2: Convert to fraction form
    647,955.72/894,176.28 = 361,475.64/x
  3. Step 3: Cross multiply
    647,955.72x = 894,176.28 × 361,475.64
  4. Step 4: Simplify right side
    647,955.72x = 323,222,943,085.82
  5. Step 5: Solve for x
    x = 323,222,943,085.82/647,955.72
  6. Step 6: Final answer
    x = 498,834.93

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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.