Home / 772,002.05-1,158,003.08-211,036.55

Finding the Fourth Proportional to 772,002.05, 1,158,003.08 and 211,036.55

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Solution

The fourth proportional to 772,002.05, 1,158,003.08 and 211,036.55 is: 316,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,002.05 : 1,158,003.08 = 211,036.55 : x
  2. Step 2: Convert to fraction form
    772,002.05/1,158,003.08 = 211,036.55/x
  3. Step 3: Cross multiply
    772,002.05x = 1,158,003.08 × 211,036.55
  4. Step 4: Simplify right side
    772,002.05x = 244,380,973,837.39
  5. Step 5: Solve for x
    x = 244,380,973,837.39/772,002.05
  6. Step 6: Final answer
    x = 316,554.83

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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.