Home / 768,116.60-1,060,000.24-428,584.84

Finding the Fourth Proportional to 768,116.60, 1,060,000.24 and 428,584.84

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Solution

The fourth proportional to 768,116.60, 1,060,000.24 and 428,584.84 is: 591,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,116.60 : 1,060,000.24 = 428,584.84 : x
  2. Step 2: Convert to fraction form
    768,116.60/1,060,000.24 = 428,584.84/x
  3. Step 3: Cross multiply
    768,116.60x = 1,060,000.24 × 428,584.84
  4. Step 4: Simplify right side
    768,116.60x = 454,300,033,260.36
  5. Step 5: Solve for x
    x = 454,300,033,260.36/768,116.60
  6. Step 6: Final answer
    x = 591,446.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.