Home / 719,391.28-1,079,086.20-213,950.20

Finding the Fourth Proportional to 719,391.28, 1,079,086.20 and 213,950.20

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Solution

The fourth proportional to 719,391.28, 1,079,086.20 and 213,950.20 is: 320,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,391.28 : 1,079,086.20 = 213,950.20 : x
  2. Step 2: Convert to fraction form
    719,391.28/1,079,086.20 = 213,950.20/x
  3. Step 3: Cross multiply
    719,391.28x = 1,079,086.20 × 213,950.20
  4. Step 4: Simplify right side
    719,391.28x = 230,870,708,307.24
  5. Step 5: Solve for x
    x = 230,870,708,307.24/719,391.28
  6. Step 6: Final answer
    x = 320,925.09

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Double scale
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Similar ratio
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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.