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Finding the Fourth Proportional to 423,511.77, 584,370 and 239,749.10

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Solution

The fourth proportional to 423,511.77, 584,370 and 239,749.10 is: 330,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,511.77 : 584,370 = 239,749.10 : x
  2. Step 2: Convert to fraction form
    423,511.77/584,370 = 239,749.10/x
  3. Step 3: Cross multiply
    423,511.77x = 584,370 × 239,749.10
  4. Step 4: Simplify right side
    423,511.77x = 140,102,178,645.15
  5. Step 5: Solve for x
    x = 140,102,178,645.15/423,511.77
  6. Step 6: Final answer
    x = 330,810.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.