Home / 772,003.30-1,158,004.95-211,037.80

Finding the Fourth Proportional to 772,003.30, 1,158,004.95 and 211,037.80

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Solution

The fourth proportional to 772,003.30, 1,158,004.95 and 211,037.80 is: 316,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,003.30 : 1,158,004.95 = 211,037.80 : x
  2. Step 2: Convert to fraction form
    772,003.30/1,158,004.95 = 211,037.80/x
  3. Step 3: Cross multiply
    772,003.30x = 1,158,004.95 × 211,037.80
  4. Step 4: Simplify right side
    772,003.30x = 244,382,817,037.11
  5. Step 5: Solve for x
    x = 244,382,817,037.11/772,003.30
  6. Step 6: Final answer
    x = 316,556.70

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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.