Home / 661,351.23-990,344.18-436,028.03

Finding the Fourth Proportional to 661,351.23, 990,344.18 and 436,028.03

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Solution

The fourth proportional to 661,351.23, 990,344.18 and 436,028.03 is: 652,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,351.23 : 990,344.18 = 436,028.03 : x
  2. Step 2: Convert to fraction form
    661,351.23/990,344.18 = 436,028.03/x
  3. Step 3: Cross multiply
    661,351.23x = 990,344.18 × 436,028.03
  4. Step 4: Simplify right side
    661,351.23x = 431,817,821,827.37
  5. Step 5: Solve for x
    x = 431,817,821,827.37/661,351.23
  6. Step 6: Final answer
    x = 652,932.67

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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.