Home / 989,340.48-1,364,644.26-626,385.96

Finding the Fourth Proportional to 989,340.48, 1,364,644.26 and 626,385.96

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Solution

The fourth proportional to 989,340.48, 1,364,644.26 and 626,385.96 is: 864,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,340.48 : 1,364,644.26 = 626,385.96 : x
  2. Step 2: Convert to fraction form
    989,340.48/1,364,644.26 = 626,385.96/x
  3. Step 3: Cross multiply
    989,340.48x = 1,364,644.26 × 626,385.96
  4. Step 4: Simplify right side
    989,340.48x = 854,794,004,858.59
  5. Step 5: Solve for x
    x = 854,794,004,858.59/989,340.48
  6. Step 6: Final answer
    x = 864,003.87

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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.