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Finding the Fourth Proportional to 538,693.34, 807,926.55 and 159,617.28

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Solution

The fourth proportional to 538,693.34, 807,926.55 and 159,617.28 is: 239,392.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,693.34 : 807,926.55 = 159,617.28 : x
  2. Step 2: Convert to fraction form
    538,693.34/807,926.55 = 159,617.28/x
  3. Step 3: Cross multiply
    538,693.34x = 807,926.55 × 159,617.28
  4. Step 4: Simplify right side
    538,693.34x = 128,959,041,679.79
  5. Step 5: Solve for x
    x = 128,959,041,679.79/538,693.34
  6. Step 6: Final answer
    x = 239,392.31

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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.