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Finding the Fourth Proportional to 647,762.84, 893,914.08 and 361,275.56

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Solution

The fourth proportional to 647,762.84, 893,914.08 and 361,275.56 is: 498,561.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,762.84 : 893,914.08 = 361,275.56 : x
  2. Step 2: Convert to fraction form
    647,762.84/893,914.08 = 361,275.56/x
  3. Step 3: Cross multiply
    647,762.84x = 893,914.08 × 361,275.56
  4. Step 4: Simplify right side
    647,762.84x = 322,949,309,843.89
  5. Step 5: Solve for x
    x = 322,949,309,843.89/647,762.84
  6. Step 6: Final answer
    x = 498,561.03

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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.