Home / 1,319,921.78-1,821,519.33-746,961.80

Finding the Fourth Proportional to 1,319,921.78, 1,821,519.33 and 746,961.80

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Solution

The fourth proportional to 1,319,921.78, 1,821,519.33 and 746,961.80 is: 1,030,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,921.78 : 1,821,519.33 = 746,961.80 : x
  2. Step 2: Convert to fraction form
    1,319,921.78/1,821,519.33 = 746,961.80/x
  3. Step 3: Cross multiply
    1,319,921.78x = 1,821,519.33 × 746,961.80
  4. Step 4: Simplify right side
    1,319,921.78x = 1,360,605,357,471.59
  5. Step 5: Solve for x
    x = 1,360,605,357,471.59/1,319,921.78
  6. Step 6: Final answer
    x = 1,030,822.72

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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.