Home / 839,071.44-1,158,002.21-512,366.44

Finding the Fourth Proportional to 839,071.44, 1,158,002.21 and 512,366.44

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Solution

The fourth proportional to 839,071.44, 1,158,002.21 and 512,366.44 is: 707,116.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,071.44 : 1,158,002.21 = 512,366.44 : x
  2. Step 2: Convert to fraction form
    839,071.44/1,158,002.21 = 512,366.44/x
  3. Step 3: Cross multiply
    839,071.44x = 1,158,002.21 × 512,366.44
  4. Step 4: Simplify right side
    839,071.44x = 593,321,469,849.83
  5. Step 5: Solve for x
    x = 593,321,469,849.83/839,071.44
  6. Step 6: Final answer
    x = 707,116.75

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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.