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Finding the Fourth Proportional to 554,585.47, 765,327.94 and 299,936.65

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Solution

The fourth proportional to 554,585.47, 765,327.94 and 299,936.65 is: 413,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,585.47 : 765,327.94 = 299,936.65 : x
  2. Step 2: Convert to fraction form
    554,585.47/765,327.94 = 299,936.65/x
  3. Step 3: Cross multiply
    554,585.47x = 765,327.94 × 299,936.65
  4. Step 4: Simplify right side
    554,585.47x = 229,549,898,475.00
  5. Step 5: Solve for x
    x = 229,549,898,475.00/554,585.47
  6. Step 6: Final answer
    x = 413,912.57

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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.