Home / 810,902.70-1,214,604.45-670,934.70

Finding the Fourth Proportional to 810,902.70, 1,214,604.45 and 670,934.70

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Solution

The fourth proportional to 810,902.70, 1,214,604.45 and 670,934.70 is: 1,004,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,902.70 : 1,214,604.45 = 670,934.70 : x
  2. Step 2: Convert to fraction form
    810,902.70/1,214,604.45 = 670,934.70/x
  3. Step 3: Cross multiply
    810,902.70x = 1,214,604.45 × 670,934.70
  4. Step 4: Simplify right side
    810,902.70x = 814,920,272,279.42
  5. Step 5: Solve for x
    x = 814,920,272,279.42/810,902.70
  6. Step 6: Final answer
    x = 1,004,954.44

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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.