Home / 495,815.86-743,723.96-135,990.46

Finding the Fourth Proportional to 495,815.86, 743,723.96 and 135,990.46

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Solution

The fourth proportional to 495,815.86, 743,723.96 and 135,990.46 is: 203,985.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,815.86 : 743,723.96 = 135,990.46 : x
  2. Step 2: Convert to fraction form
    495,815.86/743,723.96 = 135,990.46/x
  3. Step 3: Cross multiply
    495,815.86x = 743,723.96 × 135,990.46
  4. Step 4: Simplify right side
    495,815.86x = 101,139,360,894.16
  5. Step 5: Solve for x
    x = 101,139,360,894.16/495,815.86
  6. Step 6: Final answer
    x = 203,985.73

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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.