Home / 726,538.80-1,089,814.38-253,223.40

Finding the Fourth Proportional to 726,538.80, 1,089,814.38 and 253,223.40

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Solution

The fourth proportional to 726,538.80, 1,089,814.38 and 253,223.40 is: 379,837.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,538.80 : 1,089,814.38 = 253,223.40 : x
  2. Step 2: Convert to fraction form
    726,538.80/1,089,814.38 = 253,223.40/x
  3. Step 3: Cross multiply
    726,538.80x = 1,089,814.38 × 253,223.40
  4. Step 4: Simplify right side
    726,538.80x = 275,966,502,672.49
  5. Step 5: Solve for x
    x = 275,966,502,672.49/726,538.80
  6. Step 6: Final answer
    x = 379,837.25

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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.