Home / 641,996.20-962,072.70-472,191.40

Finding the Fourth Proportional to 641,996.20, 962,072.70 and 472,191.40

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Solution

The fourth proportional to 641,996.20, 962,072.70 and 472,191.40 is: 707,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,996.20 : 962,072.70 = 472,191.40 : x
  2. Step 2: Convert to fraction form
    641,996.20/962,072.70 = 472,191.40/x
  3. Step 3: Cross multiply
    641,996.20x = 962,072.70 × 472,191.40
  4. Step 4: Simplify right side
    641,996.20x = 454,282,455,114.78
  5. Step 5: Solve for x
    x = 454,282,455,114.78/641,996.20
  6. Step 6: Final answer
    x = 707,609.26

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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.