Home / 755,999.70-1,133,999.55-641,838.30

Finding the Fourth Proportional to 755,999.70, 1,133,999.55 and 641,838.30

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Solution

The fourth proportional to 755,999.70, 1,133,999.55 and 641,838.30 is: 962,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,999.70 : 1,133,999.55 = 641,838.30 : x
  2. Step 2: Convert to fraction form
    755,999.70/1,133,999.55 = 641,838.30/x
  3. Step 3: Cross multiply
    755,999.70x = 1,133,999.55 × 641,838.30
  4. Step 4: Simplify right side
    755,999.70x = 727,844,343,372.77
  5. Step 5: Solve for x
    x = 727,844,343,372.77/755,999.70
  6. Step 6: Final answer
    x = 962,757.45

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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.