Home / 726,724.60-1,089,957.30-460,007.80

Finding the Fourth Proportional to 726,724.60, 1,089,957.30 and 460,007.80

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Solution

The fourth proportional to 726,724.60, 1,089,957.30 and 460,007.80 is: 689,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,724.60 : 1,089,957.30 = 460,007.80 : x
  2. Step 2: Convert to fraction form
    726,724.60/1,089,957.30 = 460,007.80/x
  3. Step 3: Cross multiply
    726,724.60x = 1,089,957.30 × 460,007.80
  4. Step 4: Simplify right side
    726,724.60x = 501,388,859,666.94
  5. Step 5: Solve for x
    x = 501,388,859,666.94/726,724.60
  6. Step 6: Final answer
    x = 689,929.66

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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.