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Finding the Fourth Proportional to 538,312.58, 806,707.18 and 298,531.96

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Solution

The fourth proportional to 538,312.58, 806,707.18 and 298,531.96 is: 447,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,312.58 : 806,707.18 = 298,531.96 : x
  2. Step 2: Convert to fraction form
    538,312.58/806,707.18 = 298,531.96/x
  3. Step 3: Cross multiply
    538,312.58x = 806,707.18 × 298,531.96
  4. Step 4: Simplify right side
    538,312.58x = 240,827,875,591.47
  5. Step 5: Solve for x
    x = 240,827,875,591.47/538,312.58
  6. Step 6: Final answer
    x = 447,375.53

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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.