Home / 509,384.72-702,920.04-283,022.48

Finding the Fourth Proportional to 509,384.72, 702,920.04 and 283,022.48

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Solution

The fourth proportional to 509,384.72, 702,920.04 and 283,022.48 is: 390,553.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,384.72 : 702,920.04 = 283,022.48 : x
  2. Step 2: Convert to fraction form
    509,384.72/702,920.04 = 283,022.48/x
  3. Step 3: Cross multiply
    509,384.72x = 702,920.04 × 283,022.48
  4. Step 4: Simplify right side
    509,384.72x = 198,942,172,962.50
  5. Step 5: Solve for x
    x = 198,942,172,962.50/509,384.72
  6. Step 6: Final answer
    x = 390,553.87

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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.