Home / 839,071.56-1,158,002.39-512,366.57

Finding the Fourth Proportional to 839,071.56, 1,158,002.39 and 512,366.57

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Solution

The fourth proportional to 839,071.56, 1,158,002.39 and 512,366.57 is: 707,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,071.56 : 1,158,002.39 = 512,366.57 : x
  2. Step 2: Convert to fraction form
    839,071.56/1,158,002.39 = 512,366.57/x
  3. Step 3: Cross multiply
    839,071.56x = 1,158,002.39 × 512,366.57
  4. Step 4: Simplify right side
    839,071.56x = 593,321,708,107.01
  5. Step 5: Solve for x
    x = 593,321,708,107.01/839,071.56
  6. Step 6: Final answer
    x = 707,116.93

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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.