Home / 719,400.28-1,079,099.70-213,959.20

Finding the Fourth Proportional to 719,400.28, 1,079,099.70 and 213,959.20

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Solution

The fourth proportional to 719,400.28, 1,079,099.70 and 213,959.20 is: 320,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,400.28 : 1,079,099.70 = 213,959.20 : x
  2. Step 2: Convert to fraction form
    719,400.28/1,079,099.70 = 213,959.20/x
  3. Step 3: Cross multiply
    719,400.28x = 1,079,099.70 × 213,959.20
  4. Step 4: Simplify right side
    719,400.28x = 230,883,308,532.24
  5. Step 5: Solve for x
    x = 230,883,308,532.24/719,400.28
  6. Step 6: Final answer
    x = 320,938.59

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1.5x scale

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.