Home / 839,668.31-1,158,742.30-457,695.09

Finding the Fourth Proportional to 839,668.31, 1,158,742.30 and 457,695.09

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Solution

The fourth proportional to 839,668.31, 1,158,742.30 and 457,695.09 is: 631,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,668.31 : 1,158,742.30 = 457,695.09 : x
  2. Step 2: Convert to fraction form
    839,668.31/1,158,742.30 = 457,695.09/x
  3. Step 3: Cross multiply
    839,668.31x = 1,158,742.30 × 457,695.09
  4. Step 4: Simplify right side
    839,668.31x = 530,350,661,285.31
  5. Step 5: Solve for x
    x = 530,350,661,285.31/839,668.31
  6. Step 6: Final answer
    x = 631,619.24

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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.