Home / 726,518.35-1,089,818.52-221,095.81

Finding the Fourth Proportional to 726,518.35, 1,089,818.52 and 221,095.81

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Solution

The fourth proportional to 726,518.35, 1,089,818.52 and 221,095.81 is: 331,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,518.35 : 1,089,818.52 = 221,095.81 : x
  2. Step 2: Convert to fraction form
    726,518.35/1,089,818.52 = 221,095.81/x
  3. Step 3: Cross multiply
    726,518.35x = 1,089,818.52 × 221,095.81
  4. Step 4: Simplify right side
    726,518.35x = 240,954,308,432.40
  5. Step 5: Solve for x
    x = 240,954,308,432.40/726,518.35
  6. Step 6: Final answer
    x = 331,656.19

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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.