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Finding the Fourth Proportional to 559,329.30, 771,874.52 and 304,680.49

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Solution

The fourth proportional to 559,329.30, 771,874.52 and 304,680.49 is: 420,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,329.30 : 771,874.52 = 304,680.49 : x
  2. Step 2: Convert to fraction form
    559,329.30/771,874.52 = 304,680.49/x
  3. Step 3: Cross multiply
    559,329.30x = 771,874.52 × 304,680.49
  4. Step 4: Simplify right side
    559,329.30x = 235,175,103,519.03
  5. Step 5: Solve for x
    x = 235,175,103,519.03/559,329.30
  6. Step 6: Final answer
    x = 420,459.12

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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.