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Finding the Fourth Proportional to 647,107.56, 893,011.43 and 375,336.36

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Solution

The fourth proportional to 647,107.56, 893,011.43 and 375,336.36 is: 517,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,107.56 : 893,011.43 = 375,336.36 : x
  2. Step 2: Convert to fraction form
    647,107.56/893,011.43 = 375,336.36/x
  3. Step 3: Cross multiply
    647,107.56x = 893,011.43 × 375,336.36
  4. Step 4: Simplify right side
    647,107.56x = 335,179,659,574.60
  5. Step 5: Solve for x
    x = 335,179,659,574.60/647,107.56
  6. Step 6: Final answer
    x = 517,965.92

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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.