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Finding the Fourth Proportional to 519,707.90, 779,635.73 and 159,908.58

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Solution

The fourth proportional to 519,707.90, 779,635.73 and 159,908.58 is: 239,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,707.90 : 779,635.73 = 159,908.58 : x
  2. Step 2: Convert to fraction form
    519,707.90/779,635.73 = 159,908.58/x
  3. Step 3: Cross multiply
    519,707.90x = 779,635.73 × 159,908.58
  4. Step 4: Simplify right side
    519,707.90x = 124,670,442,901.34
  5. Step 5: Solve for x
    x = 124,670,442,901.34/519,707.90
  6. Step 6: Final answer
    x = 239,885.60

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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.