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Finding the Fourth Proportional to 511,527.47, 705,614.83 and 320,208.71

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Solution

The fourth proportional to 511,527.47, 705,614.83 and 320,208.71 is: 441,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,527.47 : 705,614.83 = 320,208.71 : x
  2. Step 2: Convert to fraction form
    511,527.47/705,614.83 = 320,208.71/x
  3. Step 3: Cross multiply
    511,527.47x = 705,614.83 × 320,208.71
  4. Step 4: Simplify right side
    511,527.47x = 225,944,010,943.10
  5. Step 5: Solve for x
    x = 225,944,010,943.10/511,527.47
  6. Step 6: Final answer
    x = 441,704.55

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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.