Home / 784,975.29-1,082,982.47-445,246.71

Finding the Fourth Proportional to 784,975.29, 1,082,982.47 and 445,246.71

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Solution

The fourth proportional to 784,975.29, 1,082,982.47 and 445,246.71 is: 614,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,975.29 : 1,082,982.47 = 445,246.71 : x
  2. Step 2: Convert to fraction form
    784,975.29/1,082,982.47 = 445,246.71/x
  3. Step 3: Cross multiply
    784,975.29x = 1,082,982.47 × 445,246.71
  4. Step 4: Simplify right side
    784,975.29x = 482,194,379,528.94
  5. Step 5: Solve for x
    x = 482,194,379,528.94/784,975.29
  6. Step 6: Final answer
    x = 614,279.69

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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.