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Finding the Fourth Proportional to 384,348.30, 576,522.45 and 378,443.40

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Solution

The fourth proportional to 384,348.30, 576,522.45 and 378,443.40 is: 567,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,348.30 : 576,522.45 = 378,443.40 : x
  2. Step 2: Convert to fraction form
    384,348.30/576,522.45 = 378,443.40/x
  3. Step 3: Cross multiply
    384,348.30x = 576,522.45 × 378,443.40
  4. Step 4: Simplify right side
    384,348.30x = 218,181,116,154.33
  5. Step 5: Solve for x
    x = 218,181,116,154.33/384,348.30
  6. Step 6: Final answer
    x = 567,665.10

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1.5x scale

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.