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Finding the Fourth Proportional to 538,454.60, 807,674.70 and 164,479.40

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Solution

The fourth proportional to 538,454.60, 807,674.70 and 164,479.40 is: 246,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,454.60 : 807,674.70 = 164,479.40 : x
  2. Step 2: Convert to fraction form
    538,454.60/807,674.70 = 164,479.40/x
  3. Step 3: Cross multiply
    538,454.60x = 807,674.70 × 164,479.40
  4. Step 4: Simplify right side
    538,454.60x = 132,845,850,051.18
  5. Step 5: Solve for x
    x = 132,845,850,051.18/538,454.60
  6. Step 6: Final answer
    x = 246,716.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.