Home / 339,723.40-509,585.10-302,981.80

Finding the Fourth Proportional to 339,723.40, 509,585.10 and 302,981.80

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Solution

The fourth proportional to 339,723.40, 509,585.10 and 302,981.80 is: 454,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,723.40 : 509,585.10 = 302,981.80 : x
  2. Step 2: Convert to fraction form
    339,723.40/509,585.10 = 302,981.80/x
  3. Step 3: Cross multiply
    339,723.40x = 509,585.10 × 302,981.80
  4. Step 4: Simplify right side
    339,723.40x = 154,395,010,851.18
  5. Step 5: Solve for x
    x = 154,395,010,851.18/339,723.40
  6. Step 6: Final answer
    x = 454,472.70

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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.