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Finding the Fourth Proportional to 554,938.26, 765,816.82 and 300,289.44

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Solution

The fourth proportional to 554,938.26, 765,816.82 and 300,289.44 is: 414,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,938.26 : 765,816.82 = 300,289.44 : x
  2. Step 2: Convert to fraction form
    554,938.26/765,816.82 = 300,289.44/x
  3. Step 3: Cross multiply
    554,938.26x = 765,816.82 × 300,289.44
  4. Step 4: Simplify right side
    554,938.26x = 229,966,704,020.38
  5. Step 5: Solve for x
    x = 229,966,704,020.38/554,938.26
  6. Step 6: Final answer
    x = 414,400.52

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1.5x scale

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.