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Finding the Fourth Proportional to 538,893.12, 808,612.20 and 359,100.96

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Solution

The fourth proportional to 538,893.12, 808,612.20 and 359,100.96 is: 538,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,893.12 : 808,612.20 = 359,100.96 : x
  2. Step 2: Convert to fraction form
    538,893.12/808,612.20 = 359,100.96/x
  3. Step 3: Cross multiply
    538,893.12x = 808,612.20 × 359,100.96
  4. Step 4: Simplify right side
    538,893.12x = 290,373,417,287.71
  5. Step 5: Solve for x
    x = 290,373,417,287.71/538,893.12
  6. Step 6: Final answer
    x = 538,833.04

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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.