Home / 900,890.50-1,243,229.04-492,992.45

Finding the Fourth Proportional to 900,890.50, 1,243,229.04 and 492,992.45

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Solution

The fourth proportional to 900,890.50, 1,243,229.04 and 492,992.45 is: 680,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,890.50 : 1,243,229.04 = 492,992.45 : x
  2. Step 2: Convert to fraction form
    900,890.50/1,243,229.04 = 492,992.45/x
  3. Step 3: Cross multiply
    900,890.50x = 1,243,229.04 × 492,992.45
  4. Step 4: Simplify right side
    900,890.50x = 612,902,530,635.43
  5. Step 5: Solve for x
    x = 612,902,530,635.43/900,890.50
  6. Step 6: Final answer
    x = 680,329.66

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1.5x scale

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.