Home / 3,109,142.76-4,663,837.02-865,476.84

Finding the Fourth Proportional to 3,109,142.76, 4,663,837.02 and 865,476.84

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Solution

The fourth proportional to 3,109,142.76, 4,663,837.02 and 865,476.84 is: 1,298,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,142.76 : 4,663,837.02 = 865,476.84 : x
  2. Step 2: Convert to fraction form
    3,109,142.76/4,663,837.02 = 865,476.84/x
  3. Step 3: Cross multiply
    3,109,142.76x = 4,663,837.02 × 865,476.84
  4. Step 4: Simplify right side
    3,109,142.76x = 4,036,442,926,344.62
  5. Step 5: Solve for x
    x = 4,036,442,926,344.62/3,109,142.76
  6. Step 6: Final answer
    x = 1,298,249.47

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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.