Home / 726,722.40-1,089,694.80-253,423.20

Finding the Fourth Proportional to 726,722.40, 1,089,694.80 and 253,423.20

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Solution

The fourth proportional to 726,722.40, 1,089,694.80 and 253,423.20 is: 379,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,722.40 : 1,089,694.80 = 253,423.20 : x
  2. Step 2: Convert to fraction form
    726,722.40/1,089,694.80 = 253,423.20/x
  3. Step 3: Cross multiply
    726,722.40x = 1,089,694.80 × 253,423.20
  4. Step 4: Simplify right side
    726,722.40x = 276,153,943,239.36
  5. Step 5: Solve for x
    x = 276,153,943,239.36/726,722.40
  6. Step 6: Final answer
    x = 379,999.22

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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.