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Finding the Fourth Proportional to 559,042.26, 771,480.18 and 304,395

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Solution

The fourth proportional to 559,042.26, 771,480.18 and 304,395 is: 420,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,042.26 : 771,480.18 = 304,395 : x
  2. Step 2: Convert to fraction form
    559,042.26/771,480.18 = 304,395/x
  3. Step 3: Cross multiply
    559,042.26x = 771,480.18 × 304,395
  4. Step 4: Simplify right side
    559,042.26x = 234,834,709,391.10
  5. Step 5: Solve for x
    x = 234,834,709,391.10/559,042.26
  6. Step 6: Final answer
    x = 420,066.11

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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.