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Finding the Fourth Proportional to 554,807.44, 765,626.71 and 309,795.98

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Solution

The fourth proportional to 554,807.44, 765,626.71 and 309,795.98 is: 427,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,807.44 : 765,626.71 = 309,795.98 : x
  2. Step 2: Convert to fraction form
    554,807.44/765,626.71 = 309,795.98/x
  3. Step 3: Cross multiply
    554,807.44x = 765,626.71 × 309,795.98
  4. Step 4: Simplify right side
    554,807.44x = 237,188,076,938.63
  5. Step 5: Solve for x
    x = 237,188,076,938.63/554,807.44
  6. Step 6: Final answer
    x = 427,514.23

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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.