Home / 389,701.63-584,569.47-123,481.76

Finding the Fourth Proportional to 389,701.63, 584,569.47 and 123,481.76

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Solution

The fourth proportional to 389,701.63, 584,569.47 and 123,481.76 is: 185,228.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,701.63 : 584,569.47 = 123,481.76 : x
  2. Step 2: Convert to fraction form
    389,701.63/584,569.47 = 123,481.76/x
  3. Step 3: Cross multiply
    389,701.63x = 584,569.47 × 123,481.76
  4. Step 4: Simplify right side
    389,701.63x = 72,183,666,997.87
  5. Step 5: Solve for x
    x = 72,183,666,997.87/389,701.63
  6. Step 6: Final answer
    x = 185,228.03

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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.