Home / 739,978.02-1,021,169.70-400,446.27

Finding the Fourth Proportional to 739,978.02, 1,021,169.70 and 400,446.27

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Solution

The fourth proportional to 739,978.02, 1,021,169.70 and 400,446.27 is: 552,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,978.02 : 1,021,169.70 = 400,446.27 : x
  2. Step 2: Convert to fraction form
    739,978.02/1,021,169.70 = 400,446.27/x
  3. Step 3: Cross multiply
    739,978.02x = 1,021,169.70 × 400,446.27
  4. Step 4: Simplify right side
    739,978.02x = 408,923,597,402.02
  5. Step 5: Solve for x
    x = 408,923,597,402.02/739,978.02
  6. Step 6: Final answer
    x = 552,615.87

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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.