Home / 830,986.32-1,246,036.40-431,224.60

Finding the Fourth Proportional to 830,986.32, 1,246,036.40 and 431,224.60

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Solution

The fourth proportional to 830,986.32, 1,246,036.40 and 431,224.60 is: 646,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,986.32 : 1,246,036.40 = 431,224.60 : x
  2. Step 2: Convert to fraction form
    830,986.32/1,246,036.40 = 431,224.60/x
  3. Step 3: Cross multiply
    830,986.32x = 1,246,036.40 × 431,224.60
  4. Step 4: Simplify right side
    830,986.32x = 537,321,548,175.44
  5. Step 5: Solve for x
    x = 537,321,548,175.44/830,986.32
  6. Step 6: Final answer
    x = 646,606.97

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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.