Home / 721,132.54-1,081,700.64-294,668.38

Finding the Fourth Proportional to 721,132.54, 1,081,700.64 and 294,668.38

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Solution

The fourth proportional to 721,132.54, 1,081,700.64 and 294,668.38 is: 442,003.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,132.54 : 1,081,700.64 = 294,668.38 : x
  2. Step 2: Convert to fraction form
    721,132.54/1,081,700.64 = 294,668.38/x
  3. Step 3: Cross multiply
    721,132.54x = 1,081,700.64 × 294,668.38
  4. Step 4: Simplify right side
    721,132.54x = 318,742,975,233.76
  5. Step 5: Solve for x
    x = 318,742,975,233.76/721,132.54
  6. Step 6: Final answer
    x = 442,003.32

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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.