Home / 900,009.20-1,350,208.20-268,986.80

Finding the Fourth Proportional to 900,009.20, 1,350,208.20 and 268,986.80

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Solution

The fourth proportional to 900,009.20, 1,350,208.20 and 268,986.80 is: 403,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,009.20 : 1,350,208.20 = 268,986.80 : x
  2. Step 2: Convert to fraction form
    900,009.20/1,350,208.20 = 268,986.80/x
  3. Step 3: Cross multiply
    900,009.20x = 1,350,208.20 × 268,986.80
  4. Step 4: Simplify right side
    900,009.20x = 363,188,183,051.76
  5. Step 5: Solve for x
    x = 363,188,183,051.76/900,009.20
  6. Step 6: Final answer
    x = 403,538.30

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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.