Home / 420,024.68-630,039.30-104,481.59

Finding the Fourth Proportional to 420,024.68, 630,039.30 and 104,481.59

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Solution

The fourth proportional to 420,024.68, 630,039.30 and 104,481.59 is: 156,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,024.68 : 630,039.30 = 104,481.59 : x
  2. Step 2: Convert to fraction form
    420,024.68/630,039.30 = 104,481.59/x
  3. Step 3: Cross multiply
    420,024.68x = 630,039.30 × 104,481.59
  4. Step 4: Simplify right side
    420,024.68x = 65,827,507,826.49
  5. Step 5: Solve for x
    x = 65,827,507,826.49/420,024.68
  6. Step 6: Final answer
    x = 156,722.95

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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.