Home / 753,240.54-1,129,860.45-192,274.86

Finding the Fourth Proportional to 753,240.54, 1,129,860.45 and 192,274.86

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Solution

The fourth proportional to 753,240.54, 1,129,860.45 and 192,274.86 is: 288,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,240.54 : 1,129,860.45 = 192,274.86 : x
  2. Step 2: Convert to fraction form
    753,240.54/1,129,860.45 = 192,274.86/x
  3. Step 3: Cross multiply
    753,240.54x = 1,129,860.45 × 192,274.86
  4. Step 4: Simplify right side
    753,240.54x = 217,243,759,843.29
  5. Step 5: Solve for x
    x = 217,243,759,843.29/753,240.54
  6. Step 6: Final answer
    x = 288,412.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.