Home / 719,513.19-1,079,081.78-213,938.04

Finding the Fourth Proportional to 719,513.19, 1,079,081.78 and 213,938.04

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Solution

The fourth proportional to 719,513.19, 1,079,081.78 and 213,938.04 is: 320,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,513.19 : 1,079,081.78 = 213,938.04 : x
  2. Step 2: Convert to fraction form
    719,513.19/1,079,081.78 = 213,938.04/x
  3. Step 3: Cross multiply
    719,513.19x = 1,079,081.78 × 213,938.04
  4. Step 4: Simplify right side
    719,513.19x = 230,856,639,943.22
  5. Step 5: Solve for x
    x = 230,856,639,943.22/719,513.19
  6. Step 6: Final answer
    x = 320,851.16

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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.