Home / 907,991.18-1,253,012.38-500,131.16

Finding the Fourth Proportional to 907,991.18, 1,253,012.38 and 500,131.16

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Solution

The fourth proportional to 907,991.18, 1,253,012.38 and 500,131.16 is: 690,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,991.18 : 1,253,012.38 = 500,131.16 : x
  2. Step 2: Convert to fraction form
    907,991.18/1,253,012.38 = 500,131.16/x
  3. Step 3: Cross multiply
    907,991.18x = 1,253,012.38 × 500,131.16
  4. Step 4: Simplify right side
    907,991.18x = 626,670,535,103.76
  5. Step 5: Solve for x
    x = 626,670,535,103.76/907,991.18
  6. Step 6: Final answer
    x = 690,172.49

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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.