Home / 509,370.03-702,896.64-279,922.38

Finding the Fourth Proportional to 509,370.03, 702,896.64 and 279,922.38

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Solution

The fourth proportional to 509,370.03, 702,896.64 and 279,922.38 is: 386,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,370.03 : 702,896.64 = 279,922.38 : x
  2. Step 2: Convert to fraction form
    509,370.03/702,896.64 = 279,922.38/x
  3. Step 3: Cross multiply
    509,370.03x = 702,896.64 × 279,922.38
  4. Step 4: Simplify right side
    509,370.03x = 196,756,496,677.23
  5. Step 5: Solve for x
    x = 196,756,496,677.23/509,370.03
  6. Step 6: Final answer
    x = 386,274.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.