Home / 2,758,860.40-4,138,420.20-865,663.60

Finding the Fourth Proportional to 2,758,860.40, 4,138,420.20 and 865,663.60

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Solution

The fourth proportional to 2,758,860.40, 4,138,420.20 and 865,663.60 is: 1,298,536.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,860.40 : 4,138,420.20 = 865,663.60 : x
  2. Step 2: Convert to fraction form
    2,758,860.40/4,138,420.20 = 865,663.60/x
  3. Step 3: Cross multiply
    2,758,860.40x = 4,138,420.20 × 865,663.60
  4. Step 4: Simplify right side
    2,758,860.40x = 3,582,479,728,644.72
  5. Step 5: Solve for x
    x = 3,582,479,728,644.72/2,758,860.40
  6. Step 6: Final answer
    x = 1,298,536.07

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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.