Home / 712,002.56-1,068,107.52-213,405.44

Finding the Fourth Proportional to 712,002.56, 1,068,107.52 and 213,405.44

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Solution

The fourth proportional to 712,002.56, 1,068,107.52 and 213,405.44 is: 320,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,002.56 : 1,068,107.52 = 213,405.44 : x
  2. Step 2: Convert to fraction form
    712,002.56/1,068,107.52 = 213,405.44/x
  3. Step 3: Cross multiply
    712,002.56x = 1,068,107.52 × 213,405.44
  4. Step 4: Simplify right side
    712,002.56x = 227,939,955,272.91
  5. Step 5: Solve for x
    x = 227,939,955,272.91/712,002.56
  6. Step 6: Final answer
    x = 320,139.24

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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.