Home / 1,285,835.52-1,928,767.92-486,900.12

Finding the Fourth Proportional to 1,285,835.52, 1,928,767.92 and 486,900.12

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Solution

The fourth proportional to 1,285,835.52, 1,928,767.92 and 486,900.12 is: 730,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,835.52 : 1,928,767.92 = 486,900.12 : x
  2. Step 2: Convert to fraction form
    1,285,835.52/1,928,767.92 = 486,900.12/x
  3. Step 3: Cross multiply
    1,285,835.52x = 1,928,767.92 × 486,900.12
  4. Step 4: Simplify right side
    1,285,835.52x = 939,117,331,700.15
  5. Step 5: Solve for x
    x = 939,117,331,700.15/1,285,835.52
  6. Step 6: Final answer
    x = 730,355.72

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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.