Home / 674,756.70-1,010,968.65-319,004.70

Finding the Fourth Proportional to 674,756.70, 1,010,968.65 and 319,004.70

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Solution

The fourth proportional to 674,756.70, 1,010,968.65 and 319,004.70 is: 477,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,756.70 : 1,010,968.65 = 319,004.70 : x
  2. Step 2: Convert to fraction form
    674,756.70/1,010,968.65 = 319,004.70/x
  3. Step 3: Cross multiply
    674,756.70x = 1,010,968.65 × 319,004.70
  4. Step 4: Simplify right side
    674,756.70x = 322,503,750,902.66
  5. Step 5: Solve for x
    x = 322,503,750,902.66/674,756.70
  6. Step 6: Final answer
    x = 477,955.61

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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.