Home / 378,279.12-566,710.20-339,330

Finding the Fourth Proportional to 378,279.12, 566,710.20 and 339,330

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Solution

The fourth proportional to 378,279.12, 566,710.20 and 339,330 is: 508,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,279.12 : 566,710.20 = 339,330 : x
  2. Step 2: Convert to fraction form
    378,279.12/566,710.20 = 339,330/x
  3. Step 3: Cross multiply
    378,279.12x = 566,710.20 × 339,330
  4. Step 4: Simplify right side
    378,279.12x = 192,301,772,166.00
  5. Step 5: Solve for x
    x = 192,301,772,166.00/378,279.12
  6. Step 6: Final answer
    x = 508,359.47

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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.