Home / 723,570.99-1,086,007.01-386,899.42

Finding the Fourth Proportional to 723,570.99, 1,086,007.01 and 386,899.42

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Solution

The fourth proportional to 723,570.99, 1,086,007.01 and 386,899.42 is: 580,696.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,570.99 : 1,086,007.01 = 386,899.42 : x
  2. Step 2: Convert to fraction form
    723,570.99/1,086,007.01 = 386,899.42/x
  3. Step 3: Cross multiply
    723,570.99x = 1,086,007.01 × 386,899.42
  4. Step 4: Simplify right side
    723,570.99x = 420,175,477,635.42
  5. Step 5: Solve for x
    x = 420,175,477,635.42/723,570.99
  6. Step 6: Final answer
    x = 580,696.96

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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.