Home / 486,835.94-729,601.17-378,895.68

Finding the Fourth Proportional to 486,835.94, 729,601.17 and 378,895.68

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Solution

The fourth proportional to 486,835.94, 729,601.17 and 378,895.68 is: 567,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,835.94 : 729,601.17 = 378,895.68 : x
  2. Step 2: Convert to fraction form
    486,835.94/729,601.17 = 378,895.68/x
  3. Step 3: Cross multiply
    486,835.94x = 729,601.17 × 378,895.68
  4. Step 4: Simplify right side
    486,835.94x = 276,442,731,435.95
  5. Step 5: Solve for x
    x = 276,442,731,435.95/486,835.94
  6. Step 6: Final answer
    x = 567,835.50

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1.5x scale

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.