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Finding the Fourth Proportional to 538,895.12, 808,615.20 and 359,102.96

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Solution

The fourth proportional to 538,895.12, 808,615.20 and 359,102.96 is: 538,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,895.12 : 808,615.20 = 359,102.96 : x
  2. Step 2: Convert to fraction form
    538,895.12/808,615.20 = 359,102.96/x
  3. Step 3: Cross multiply
    538,895.12x = 808,615.20 × 359,102.96
  4. Step 4: Simplify right side
    538,895.12x = 290,376,111,820.99
  5. Step 5: Solve for x
    x = 290,376,111,820.99/538,895.12
  6. Step 6: Final answer
    x = 538,836.04

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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.