Home / 756,005.70-1,134,008.55-543,429.30

Finding the Fourth Proportional to 756,005.70, 1,134,008.55 and 543,429.30

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Solution

The fourth proportional to 756,005.70, 1,134,008.55 and 543,429.30 is: 815,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,005.70 : 1,134,008.55 = 543,429.30 : x
  2. Step 2: Convert to fraction form
    756,005.70/1,134,008.55 = 543,429.30/x
  3. Step 3: Cross multiply
    756,005.70x = 1,134,008.55 × 543,429.30
  4. Step 4: Simplify right side
    756,005.70x = 616,253,472,520.52
  5. Step 5: Solve for x
    x = 616,253,472,520.52/756,005.70
  6. Step 6: Final answer
    x = 815,143.95

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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.