Home / 900,791.66-1,243,073.30-492,891.86

Finding the Fourth Proportional to 900,791.66, 1,243,073.30 and 492,891.86

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Solution

The fourth proportional to 900,791.66, 1,243,073.30 and 492,891.86 is: 680,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,791.66 : 1,243,073.30 = 492,891.86 : x
  2. Step 2: Convert to fraction form
    900,791.66/1,243,073.30 = 492,891.86/x
  3. Step 3: Cross multiply
    900,791.66x = 1,243,073.30 × 492,891.86
  4. Step 4: Simplify right side
    900,791.66x = 612,700,710,953.34
  5. Step 5: Solve for x
    x = 612,700,710,953.34/900,791.66
  6. Step 6: Final answer
    x = 680,180.27

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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.