Home / 719,532.96-1,079,111.40-213,957.80

Finding the Fourth Proportional to 719,532.96, 1,079,111.40 and 213,957.80

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Solution

The fourth proportional to 719,532.96, 1,079,111.40 and 213,957.80 is: 320,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,532.96 : 1,079,111.40 = 213,957.80 : x
  2. Step 2: Convert to fraction form
    719,532.96/1,079,111.40 = 213,957.80/x
  3. Step 3: Cross multiply
    719,532.96x = 1,079,111.40 × 213,957.80
  4. Step 4: Simplify right side
    719,532.96x = 230,884,301,098.92
  5. Step 5: Solve for x
    x = 230,884,301,098.92/719,532.96
  6. Step 6: Final answer
    x = 320,880.79

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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.