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Finding the Fourth Proportional to 559,336.70, 771,880.70 and 304,687.89

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Solution

The fourth proportional to 559,336.70, 771,880.70 and 304,687.89 is: 420,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,336.70 : 771,880.70 = 304,687.89 : x
  2. Step 2: Convert to fraction form
    559,336.70/771,880.70 = 304,687.89/x
  3. Step 3: Cross multiply
    559,336.70x = 771,880.70 × 304,687.89
  4. Step 4: Simplify right side
    559,336.70x = 235,182,701,814.72
  5. Step 5: Solve for x
    x = 235,182,701,814.72/559,336.70
  6. Step 6: Final answer
    x = 420,467.14

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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.