Home / 1,284,542.65-1,926,230.78-485,558.65

Finding the Fourth Proportional to 1,284,542.65, 1,926,230.78 and 485,558.65

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Solution

The fourth proportional to 1,284,542.65, 1,926,230.78 and 485,558.65 is: 728,117.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,542.65 : 1,926,230.78 = 485,558.65 : x
  2. Step 2: Convert to fraction form
    1,284,542.65/1,926,230.78 = 485,558.65/x
  3. Step 3: Cross multiply
    1,284,542.65x = 1,926,230.78 × 485,558.65
  4. Step 4: Simplify right side
    1,284,542.65x = 935,298,014,697.45
  5. Step 5: Solve for x
    x = 935,298,014,697.45/1,284,542.65
  6. Step 6: Final answer
    x = 728,117.52

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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.