Home / 695,500.40-1,042,991.40-274,689.20

Finding the Fourth Proportional to 695,500.40, 1,042,991.40 and 274,689.20

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Solution

The fourth proportional to 695,500.40, 1,042,991.40 and 274,689.20 is: 411,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,500.40 : 1,042,991.40 = 274,689.20 : x
  2. Step 2: Convert to fraction form
    695,500.40/1,042,991.40 = 274,689.20/x
  3. Step 3: Cross multiply
    695,500.40x = 1,042,991.40 × 274,689.20
  4. Step 4: Simplify right side
    695,500.40x = 286,498,473,272.88
  5. Step 5: Solve for x
    x = 286,498,473,272.88/695,500.40
  6. Step 6: Final answer
    x = 411,931.43

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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.