Home / 939,077.75-1,295,917.79-509,348.66

Finding the Fourth Proportional to 939,077.75, 1,295,917.79 and 509,348.66

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Solution

The fourth proportional to 939,077.75, 1,295,917.79 and 509,348.66 is: 702,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,077.75 : 1,295,917.79 = 509,348.66 : x
  2. Step 2: Convert to fraction form
    939,077.75/1,295,917.79 = 509,348.66/x
  3. Step 3: Cross multiply
    939,077.75x = 1,295,917.79 × 509,348.66
  4. Step 4: Simplify right side
    939,077.75x = 660,073,980,780.33
  5. Step 5: Solve for x
    x = 660,073,980,780.33/939,077.75
  6. Step 6: Final answer
    x = 702,895.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.