Home / 1,486,990.20-2,228,925.78-727,784.76

Finding the Fourth Proportional to 1,486,990.20, 2,228,925.78 and 727,784.76

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Solution

The fourth proportional to 1,486,990.20, 2,228,925.78 and 727,784.76 is: 1,090,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,990.20 : 2,228,925.78 = 727,784.76 : x
  2. Step 2: Convert to fraction form
    1,486,990.20/2,228,925.78 = 727,784.76/x
  3. Step 3: Cross multiply
    1,486,990.20x = 2,228,925.78 × 727,784.76
  4. Step 4: Simplify right side
    1,486,990.20x = 1,622,178,213,855.11
  5. Step 5: Solve for x
    x = 1,622,178,213,855.11/1,486,990.20
  6. Step 6: Final answer
    x = 1,090,913.86

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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.