Home / 772,496.40-1,158,859.80-273,821.20

Finding the Fourth Proportional to 772,496.40, 1,158,859.80 and 273,821.20

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Solution

The fourth proportional to 772,496.40, 1,158,859.80 and 273,821.20 is: 410,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,496.40 : 1,158,859.80 = 273,821.20 : x
  2. Step 2: Convert to fraction form
    772,496.40/1,158,859.80 = 273,821.20/x
  3. Step 3: Cross multiply
    772,496.40x = 1,158,859.80 × 273,821.20
  4. Step 4: Simplify right side
    772,496.40x = 317,320,381,067.76
  5. Step 5: Solve for x
    x = 317,320,381,067.76/772,496.40
  6. Step 6: Final answer
    x = 410,772.63

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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.