Home / 539,020.40-809,113.80-302,824.40

Finding the Fourth Proportional to 539,020.40, 809,113.80 and 302,824.40

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Solution

The fourth proportional to 539,020.40, 809,113.80 and 302,824.40 is: 454,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,020.40 : 809,113.80 = 302,824.40 : x
  2. Step 2: Convert to fraction form
    539,020.40/809,113.80 = 302,824.40/x
  3. Step 3: Cross multiply
    539,020.40x = 809,113.80 × 302,824.40
  4. Step 4: Simplify right side
    539,020.40x = 245,019,401,016.72
  5. Step 5: Solve for x
    x = 245,019,401,016.72/539,020.40
  6. Step 6: Final answer
    x = 454,564.24

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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.