Home / 755,425.50-1,133,138.97-312,205.02

Finding the Fourth Proportional to 755,425.50, 1,133,138.97 and 312,205.02

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Solution

The fourth proportional to 755,425.50, 1,133,138.97 and 312,205.02 is: 468,307.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,425.50 : 1,133,138.97 = 312,205.02 : x
  2. Step 2: Convert to fraction form
    755,425.50/1,133,138.97 = 312,205.02/x
  3. Step 3: Cross multiply
    755,425.50x = 1,133,138.97 × 312,205.02
  4. Step 4: Simplify right side
    755,425.50x = 353,771,674,791.63
  5. Step 5: Solve for x
    x = 353,771,674,791.63/755,425.50
  6. Step 6: Final answer
    x = 468,307.83

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1.5x scale

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.