Home / 900,891.50-1,243,230.42-492,993.45

Finding the Fourth Proportional to 900,891.50, 1,243,230.42 and 492,993.45

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Solution

The fourth proportional to 900,891.50, 1,243,230.42 and 492,993.45 is: 680,331.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,891.50 : 1,243,230.42 = 492,993.45 : x
  2. Step 2: Convert to fraction form
    900,891.50/1,243,230.42 = 492,993.45/x
  3. Step 3: Cross multiply
    900,891.50x = 1,243,230.42 × 492,993.45
  4. Step 4: Simplify right side
    900,891.50x = 612,904,453,900.75
  5. Step 5: Solve for x
    x = 612,904,453,900.75/900,891.50
  6. Step 6: Final answer
    x = 680,331.04

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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.