Home / 1,200,687.43-1,656,943.70-649,403.75

Finding the Fourth Proportional to 1,200,687.43, 1,656,943.70 and 649,403.75

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Solution

The fourth proportional to 1,200,687.43, 1,656,943.70 and 649,403.75 is: 896,174.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,687.43 : 1,656,943.70 = 649,403.75 : x
  2. Step 2: Convert to fraction form
    1,200,687.43/1,656,943.70 = 649,403.75/x
  3. Step 3: Cross multiply
    1,200,687.43x = 1,656,943.70 × 649,403.75
  4. Step 4: Simplify right side
    1,200,687.43x = 1,076,025,443,893.91
  5. Step 5: Solve for x
    x = 1,076,025,443,893.91/1,200,687.43
  6. Step 6: Final answer
    x = 896,174.49

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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.