Home / 851,476.78-1,275,769.84-513,807.94

Finding the Fourth Proportional to 851,476.78, 1,275,769.84 and 513,807.94

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Solution

The fourth proportional to 851,476.78, 1,275,769.84 and 513,807.94 is: 769,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,476.78 : 1,275,769.84 = 513,807.94 : x
  2. Step 2: Convert to fraction form
    851,476.78/1,275,769.84 = 513,807.94/x
  3. Step 3: Cross multiply
    851,476.78x = 1,275,769.84 × 513,807.94
  4. Step 4: Simplify right side
    851,476.78x = 655,500,673,404.53
  5. Step 5: Solve for x
    x = 655,500,673,404.53/851,476.78
  6. Step 6: Final answer
    x = 769,839.75

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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.