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Finding the Fourth Proportional to 772,570.60, 1,158,855.90 and 273,869.80

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Solution

The fourth proportional to 772,570.60, 1,158,855.90 and 273,869.80 is: 410,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,570.60 : 1,158,855.90 = 273,869.80 : x
  2. Step 2: Convert to fraction form
    772,570.60/1,158,855.90 = 273,869.80/x
  3. Step 3: Cross multiply
    772,570.60x = 1,158,855.90 × 273,869.80
  4. Step 4: Simplify right side
    772,570.60x = 317,375,633,561.82
  5. Step 5: Solve for x
    x = 317,375,633,561.82/772,570.60
  6. Step 6: Final answer
    x = 410,804.70

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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.