Home / 694,444.63-1,039,591.56-420,060.47

Finding the Fourth Proportional to 694,444.63, 1,039,591.56 and 420,060.47

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Solution

The fourth proportional to 694,444.63, 1,039,591.56 and 420,060.47 is: 628,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,444.63 : 1,039,591.56 = 420,060.47 : x
  2. Step 2: Convert to fraction form
    694,444.63/1,039,591.56 = 420,060.47/x
  3. Step 3: Cross multiply
    694,444.63x = 1,039,591.56 × 420,060.47
  4. Step 4: Simplify right side
    694,444.63x = 436,691,314,103.68
  5. Step 5: Solve for x
    x = 436,691,314,103.68/694,444.63
  6. Step 6: Final answer
    x = 628,835.32

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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.