Home / 971,678.52-1,340,918.69-541,986.48

Finding the Fourth Proportional to 971,678.52, 1,340,918.69 and 541,986.48

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Solution

The fourth proportional to 971,678.52, 1,340,918.69 and 541,986.48 is: 747,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,678.52 : 1,340,918.69 = 541,986.48 : x
  2. Step 2: Convert to fraction form
    971,678.52/1,340,918.69 = 541,986.48/x
  3. Step 3: Cross multiply
    971,678.52x = 1,340,918.69 × 541,986.48
  4. Step 4: Simplify right side
    971,678.52x = 726,759,798,049.38
  5. Step 5: Solve for x
    x = 726,759,798,049.38/971,678.52
  6. Step 6: Final answer
    x = 747,942.64

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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.