Home / 674,939.76-1,013,984.28-394,653.84

Finding the Fourth Proportional to 674,939.76, 1,013,984.28 and 394,653.84

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Solution

The fourth proportional to 674,939.76, 1,013,984.28 and 394,653.84 is: 592,901.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,939.76 : 1,013,984.28 = 394,653.84 : x
  2. Step 2: Convert to fraction form
    674,939.76/1,013,984.28 = 394,653.84/x
  3. Step 3: Cross multiply
    674,939.76x = 1,013,984.28 × 394,653.84
  4. Step 4: Simplify right side
    674,939.76x = 400,172,789,801.64
  5. Step 5: Solve for x
    x = 400,172,789,801.64/674,939.76
  6. Step 6: Final answer
    x = 592,901.49

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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.