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Finding the Fourth Proportional to 647,770.56, 893,924.76 and 361,309.04

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Solution

The fourth proportional to 647,770.56, 893,924.76 and 361,309.04 is: 498,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,770.56 : 893,924.76 = 361,309.04 : x
  2. Step 2: Convert to fraction form
    647,770.56/893,924.76 = 361,309.04/x
  3. Step 3: Cross multiply
    647,770.56x = 893,924.76 × 361,309.04
  4. Step 4: Simplify right side
    647,770.56x = 322,983,096,867.83
  5. Step 5: Solve for x
    x = 322,983,096,867.83/647,770.56
  6. Step 6: Final answer
    x = 498,607.25

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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.