Home / 726,077.60-1,089,116.40-693,418.40

Finding the Fourth Proportional to 726,077.60, 1,089,116.40 and 693,418.40

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Solution

The fourth proportional to 726,077.60, 1,089,116.40 and 693,418.40 is: 1,040,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,077.60 : 1,089,116.40 = 693,418.40 : x
  2. Step 2: Convert to fraction form
    726,077.60/1,089,116.40 = 693,418.40/x
  3. Step 3: Cross multiply
    726,077.60x = 1,089,116.40 × 693,418.40
  4. Step 4: Simplify right side
    726,077.60x = 755,213,351,501.76
  5. Step 5: Solve for x
    x = 755,213,351,501.76/726,077.60
  6. Step 6: Final answer
    x = 1,040,127.60

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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.