Home / 772,543.80-1,158,815.70-323,115.30

Finding the Fourth Proportional to 772,543.80, 1,158,815.70 and 323,115.30

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Solution

The fourth proportional to 772,543.80, 1,158,815.70 and 323,115.30 is: 484,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,543.80 : 1,158,815.70 = 323,115.30 : x
  2. Step 2: Convert to fraction form
    772,543.80/1,158,815.70 = 323,115.30/x
  3. Step 3: Cross multiply
    772,543.80x = 1,158,815.70 × 323,115.30
  4. Step 4: Simplify right side
    772,543.80x = 374,431,082,550.21
  5. Step 5: Solve for x
    x = 374,431,082,550.21/772,543.80
  6. Step 6: Final answer
    x = 484,672.95

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Double scale
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Similar ratio
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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.