Home / 854,946-1,180,296.36-640,008.72

Finding the Fourth Proportional to 854,946, 1,180,296.36 and 640,008.72

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Solution

The fourth proportional to 854,946, 1,180,296.36 and 640,008.72 is: 883,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,946 : 1,180,296.36 = 640,008.72 : x
  2. Step 2: Convert to fraction form
    854,946/1,180,296.36 = 640,008.72/x
  3. Step 3: Cross multiply
    854,946x = 1,180,296.36 × 640,008.72
  4. Step 4: Simplify right side
    854,946x = 755,399,962,584.26
  5. Step 5: Solve for x
    x = 755,399,962,584.26/854,946
  6. Step 6: Final answer
    x = 883,564.53

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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.