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Finding the Fourth Proportional to 591,998.63, 816,412.96 and 387,975.22

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Solution

The fourth proportional to 591,998.63, 816,412.96 and 387,975.22 is: 535,048.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,998.63 : 816,412.96 = 387,975.22 : x
  2. Step 2: Convert to fraction form
    591,998.63/816,412.96 = 387,975.22/x
  3. Step 3: Cross multiply
    591,998.63x = 816,412.96 × 387,975.22
  4. Step 4: Simplify right side
    591,998.63x = 316,747,997,766.85
  5. Step 5: Solve for x
    x = 316,747,997,766.85/591,998.63
  6. Step 6: Final answer
    x = 535,048.53

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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.