Home / 756,304.38-1,043,686.53-412,143.30

Finding the Fourth Proportional to 756,304.38, 1,043,686.53 and 412,143.30

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Solution

The fourth proportional to 756,304.38, 1,043,686.53 and 412,143.30 is: 568,750.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,304.38 : 1,043,686.53 = 412,143.30 : x
  2. Step 2: Convert to fraction form
    756,304.38/1,043,686.53 = 412,143.30/x
  3. Step 3: Cross multiply
    756,304.38x = 1,043,686.53 × 412,143.30
  4. Step 4: Simplify right side
    756,304.38x = 430,148,410,639.75
  5. Step 5: Solve for x
    x = 430,148,410,639.75/756,304.38
  6. Step 6: Final answer
    x = 568,750.39

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.